D. Thomsen

About Me 

Email: dcthomsen [at] comcast [dot] net

Recent Updates 

Passyunk Avenue Bridge (Philadelphia County, Pennsylvania)
Bridge over Schuylkill River; Schuylkill Avenue; ramp to S. 61st St
November 9, 2010: New photo
Columbus Road Bridge (Cuyahoga County, Ohio)
Vertical lift bridge on Columbus Road (CR 356) in Cleveland
October 14, 2010: Updated by D. Thomsen: Added Cuyahoga River
Holme Avenue Bridge (Philadelphia County, Pennsylvania)
Concrete arch bridge over Pennypack Creek on Holme Avenue in Philadelphia
September 26, 2010: New photos
Erie Zoo Drift Catcher Bridge (Erie County, Pennsylvania)
Bridge over Mill Creek, Erie County, PA on Erie Zoo train
September 13, 2010: Added
Lime Valley Covered Bridge 38-36-23 (Lancaster County, Pennsylvania)
Covered bridge over Pequea Creek on Breneman Road
September 6, 2010: Updated by D. Thomsen: Pequea Creek
Leaman Place Covered Bridge 38-36-20 #2 (Lancaster County, Pennsylvania)
Covered bridge over Pequea Creek on Belmont Road (TR 684)
September 6, 2010: Updated by D. Thomsen: Pequea Creek
Leaman Place Covered Bridge 38-36-20 #2 (Lancaster County, Pennsylvania)
Covered bridge over Pequea Creek on Belmont Road (TR 684)
September 6, 2010: Updated by D. Thomsen: Pequea Creek
Neff's Mill Covered Bridge 38-36-22 (Lancaster County, Pennsylvania)
Covered bridge over Pequea Creek on Penn Grant Road
September 5, 2010: Updated by D. Thomsen: Pequea Creek
Baumgardner Mill Covered Bridge 38-36-25 (Lancaster County, Pennsylvania)
Covered bridge over Pequea Creek on Covered Bridge Road
September 5, 2010: Updated by D. Thomsen: Pequea Creek
Colemanville Covered Bridge 38-36-55 (Lancaster County, Pennsylvania)
Covered bridge over Pequea Creek on Fox Hollow Road
September 5, 2010: Updated by D. Thomsen: Pequea Creek
Loop Road Bridge (Lancaster County, Pennsylvania)
Pony truss bridge over Pequea Creek on Loop Road
September 5, 2010: Updated by D. Thomsen: Pequea Creek
Pequea Creek Bridge (Lancaster County, Pennsylvania)
Concrete through girder bridge over Pequea Creek on PA 2030
September 5, 2010: Updated by D. Thomsen: Pequea Creek
Pequea Creek Bridge (Lancaster County, Pennsylvania)
Concrete arch bridge over Pequea Creek on PA 2029
September 5, 2010: Updated by D. Thomsen: Pequea Creek
Pequea Creek Bridge (Lancaster County, Pennsylvania)
Lost through truss bridge over Pequea Creek on PA 324
September 5, 2010: Updated by D. Thomsen: Pequea Creek
Pequea Creek Bridge (Lancaster County, Pennsylvania)
Concrete arch bridge over Pequea Creek on PA 741
September 5, 2010: Updated by D. Thomsen: Pequea Creek
NS - Schuylkill Expressway Overpass (Montgomery County, Pennsylvania)
Truss bridge over Schuylkill Expressway on Norfolk Southern Railway in King Of Prussia, PA
August 23, 2010: Updated by D. Thomsen: Added categories
NS - Schuylkill Expressway Overpass (Montgomery County, Pennsylvania)
Truss bridge over Schuylkill Expressway on Norfolk Southern Railway in King Of Prussia, PA
August 23, 2010: Updated by D. Thomsen: Added categories
Walnut Lane Bridge (Philadelphia County, Pennsylvania)
Pre-Stressed Concrete Stringer bridge over Lincoln Dr,Monoshone Creek on Walnut Lane
August 18, 2010: Added
Walnut Lane Bridge (Philadelphia County, Pennsylvania)
Stringer bridge over Lincoln Dr,Monoshone Creek on Walnut Lane
August 18, 2010: Added
Vine Street Expressway bridge (Philadelphia County, Pennsylvania)
Deck girder bridge over Schuylkill River, CSX tracks, I676 East ramp from Eakins Oval on I-676/US 30
August 18, 2010: Updated by D. Thomsen: (NBI 670676000206220)
Lenape Road Bridge East Bradford Township (Chester County, Pennsylvania)
Stone arch bridge over Brandywine Creek Flood on Lenape Road border E. Brandford & Pocpson Twp on PA. 52 sw Wat Chester, PA
August 16, 2010: Added
South Market Street Bridge (New Castle County, Delaware)
Bascule bridge over Christina River on South Market Street in Wilmington
August 16, 2010: Updated by D. Thomsen: Christina River
Walnut Street Bridge (New Castle County, Delaware)
Bascule bridge over Christina River on Walnut St. in Wilmington
August 16, 2010: Updated by D. Thomsen: Christina River
Washington Street Bridge (New Castle County, Delaware)
Concrete open spandrel arch bridge over Brandywine Creek, Conrail on Washington St. in Wilmington
August 16, 2010: Updated by D. Thomsen: Brandywine Creek
Washington Street Bridge (New Castle County, Delaware)
Concrete open spandrel arch bridge over Brandywine Creek, Conrail on Washington St. in Wilmington
August 16, 2010: Updated by D. Thomsen: Brandywine Creek
Augustine Cutoff Bridge (New Castle County, Delaware)
Deck truss bridge over Brandywine Creek on Augustine Cutoff in Wilmington
August 16, 2010: Updated by D. Thomsen: Brandywine Creek
Benjamin Franklin Bridge (Philadelphia County, Pennsylvania)
Suspension bridge over Delaware River on I-676/US 30 in Philadelphia
August 14, 2010: Updated by D. Thomsen: Overview details
Benjamin Franklin Bridge (Philadelphia County, Pennsylvania)
Suspension bridge over Delaware River on I-676/US 30 in Philadelphia
August 14, 2010: Updated by D. Thomsen: Names switched to current name
Walt Whitman Bridge (Philadelphia County, Pennsylvania)
Suspension bridge over Delaware River on I-76 in Philadelphia
August 14, 2010: Updated by D. Thomsen: Delaware River Port Authority
Walt Whitman Bridge (Philadelphia County, Pennsylvania)
Suspension bridge over Delaware River on I-76 in Philadelphia
August 14, 2010: Updated by D. Thomsen: Delaware River Port Authority
Benjamin Franklin Bridge (Philadelphia County, Pennsylvania)
Suspension bridge over Delaware River on I-676/US 30 in Philadelphia
August 14, 2010: Updated by D. Thomsen: Delaware River Port Authority
Betsy Ross Bridge (Philadelphia County, Pennsylvania)
Truss bridge on NJ 90 over Delaware River, Richmond Street, River Road, Hedley Street
August 14, 2010: Updated by D. Thomsen: Norfolk Southern Railway
Betsy Ross Bridge (Philadelphia County, Pennsylvania)
Truss bridge on NJ 90 over Delaware River, Richmond Street, River Road, Hedley Street
August 14, 2010: Essay added
Betsy Ross Bridge (Philadelphia County, Pennsylvania)
Truss bridge on NJ 90 over Delaware River, Richmond Street, River Road, Hedley Street
August 14, 2010: Updated by D. Thomsen: Overview details
Betsy Ross Bridge (Philadelphia County, Pennsylvania)
Truss bridge on NJ 90 over Delaware River, Richmond Street, River Road, Hedley Street
August 14, 2010: Updated by D. Thomsen: Overview details
Betsy Ross Bridge (Philadelphia County, Pennsylvania)
Truss bridge on NJ 90 over Delaware River, Richmond Street, River Road, Hedley Street
August 14, 2010: Added
Walt Whitman Bridge (Philadelphia County, Pennsylvania)
Suspension bridge over Delaware River on I-76 in Philadelphia
August 14, 2010: Updated by D. Thomsen: Added categories
Walt Whitman Bridge (Philadelphia County, Pennsylvania)
Suspension bridge over Delaware River on I-76 in Philadelphia
August 14, 2010: Updated by D. Thomsen: Added categories
Benjamin Franklin Bridge (Philadelphia County, Pennsylvania)
Suspension bridge over Delaware River on I-676/US 30 in Philadelphia
August 14, 2010: Updated by D. Thomsen: Added categories
Benjamin Franklin Bridge (Philadelphia County, Pennsylvania)
Suspension bridge over Delaware River on I-676/US 30 in Philadelphia
August 14, 2010: Updated by D. Thomsen: Added categories
Benjamin Franklin Bridge (Philadelphia County, Pennsylvania)
Suspension bridge over Delaware River on I-676/US 30 in Philadelphia
August 14, 2010: Updated by D. Thomsen: Added alternate bridge name
Benjamin Franklin Bridge (Philadelphia County, Pennsylvania)
Suspension bridge over Delaware River on I-676/US 30 in Philadelphia
August 14, 2010: Updated by D. Thomsen: Category:Painted blue
Walnut Street Bridge (Philadelphia County, Pennsylvania)
Bridge over Schuylkill River,24th Street,32nd,31st,Schuylkill Expressway, I-76 on Walnut Street
August 14, 2010: Updated by D. Thomsen: Category:Painted green
Vine Street Expressway bridge (Philadelphia County, Pennsylvania)
Deck girder bridge over Schuylkill River, CSX tracks, I676 East ramp from Eakins Oval on I-676/US 30
August 14, 2010: Updated by D. Thomsen: Add category:Painted blue
Spring Garden Street Bridge (Philadelphia County, Pennsylvania)
Girder bridge over Schuylkill River and Schuylkill Expressway on Spring Garden Street
August 14, 2010: Updated by D. Thomsen: Add category:Painted blue
Schuylkill Expressway Bridge (Philadelphia County, Pennsylvania)
Bridge over Schuylkill River, CSX tracks
August 14, 2010: Updated by D. Thomsen: Category:Painted blue
NYC - Gauley River Bridge (Fayette County, West Virginia)
Abandoned through truss bridge over Gauley River on former New York Central Railroad
August 13, 2010: Updated by D. Thomsen: Added NYC RR as a category.
NYC - Gauley River Bridge (Fayette County, West Virginia)
Abandoned through truss bridge over Gauley River on former New York Central Railroad
August 13, 2010: Updated by D. Thomsen: Added NYC RR as a category.
Green Bank Road Bridge (Burlington County, New Jersey)
Bascule bridge over Mullica River on CR 563
August 13, 2010: Updated by D. Thomsen: Add decimal lat long
Green Bank Road Bridge (Burlington County, New Jersey)
Bascule bridge over Mullica River on CR 563
August 13, 2010: Updated by D. Thomsen: Add decimal lat long

Recent Comments 

Posted September 26, 2010

This bridge was built in 1921. See photo of bridge placque.

Walnut Lane Bridge (Pennsylvania)
Posted August 18, 2010

NBI #674015002000000, but where does this number go?

Posted August 18, 2010

This bridge is NBI 670095015000000. Where should that id go in the article?

Design: Schylkill Expressway
Posted August 16, 2010

There are 11 bridges with the design Schuylkill Expressway, most or all of which I added to BH. This is not a design, so somewhere I am adding something where it does not belong. Any ideas? Can it be fixed?

See http://bridgehunter.com/scripts/search.cgi?format=categories...

Bridge comment
Posted August 14, 2010

Many famous bridges owned by bi-state authorities are shown in Bridge Hunter as state-owned bridges, but that is not really the case. New Jersey does not own the Betsy Ross Bridge, or the George Washington Bridge, bi-state toll authorities do. Can the ownership choices be expanded to show the true situation?

The Delaware River Port Authority of Pennsylvania and New Jersey owns the Walt Whitman Bridge, the Betsy Ross Bridge, and other bridges. The DRPA is a Bi-state Authority and is a Congressionally-approved interstate compact entity.

http://en.wikipedia.org/wiki/Delaware_River_Port_Authority

The Port Authority of New York and New Jersey is the same kind of entity, a bi-state, Congressionally-approved interstate compact entity.

http://en.wikipedia.org/wiki/Port_Authority_of_New_York_and_...

Posted August 14, 2010

The Benjamin Franklin Bridge and the Delaware River Bridge are the same bridge. How can they be combined into a single entry?

Posted August 13, 2010

URL for the FCC latitude/longitude converter is: http://www.fcc.gov/mb/audio/bickel/DDDMMSS-decimal.html

Posted August 13, 2010

The FCC has a converter for latitude and longitude, either to or from decimal. This bridge is at 39.611667, -74.588889 by their conversion. Be careful to use a minus sign for West longitude, or the location is in China.

Posted August 13, 2010

There are two Burlington-Bristol Bridge entries, slightly different, but they should be researched and combined.

Posted August 13, 2010

This bridge is at N 39 36' 42" W 74 35' 20" but I do not know how to convert that to decimal latitude and longitude.

Chestnut Street Bridge
Posted August 10, 2010

Today I imported the Chestnut Street Bridge over the Schuylkill River from the NBI and uploaded 5 photos. Having seen the bridge in person, I have doubts about the dates for this bridge supplied by the NBI. Please take a look and let me know what you think.

Quick Start Guide, Adding a bridge
Posted August 10, 2010

Right now, the Quick Start Guide for adding a bridge says,

If you can't find a particular bridge, you can create a new page for it from scratch. First, read the guidelines below to make sure the bridge is worthy of posting.

What follows is not specific enough, at least for me, so here is my version. I have uploaded some screen capture images for clarity.

Then, click on “Add new bridge” and use the pull-down menus to the state and county where the bridge is located. The “Add bridge” form that follows allows you to enter the bridge from scratch. If you click on the county name, you will see a choice of “Add bridge here” or “Import from NBI.” Clicking on “Import from NBI” allows you to import from NBI 2009, NBI 2000, or NBI 1992. Clicking on any of the NBI choices produces a list of bridges in the county, and sometimes a long list. Using your browser’s Find may make it easier to find the specific bridge. Be careful of abbreviations, and ramps are usually not the bridge you want.

Posted August 5, 2010

This location does not have a stone arch bridge, which should be apparent from Bing aerial or bird's eye pictures.

Navy Yard Lift Bridge
Posted July 29, 2010

Nathan Holth:

The Navy Yard Lift Bridge is up here on BH, but I need more information to put it on Wikipedia. Do you know when it was built? How did you know the name? I need sources for such things. Thanks for that coordinates tool, I used it to get a good fix on this bridge.

Perhaps I can learn something from the Bedwell Co., though.

Philadelphia Navy Yard lift bridge
Posted July 28, 2010

This old lift bridge is located in the former Philadelphia Navy Yard, between the Schuylkill River and the basin still used to moor mothballed naval vessels.

Bing Maps says it is on Basin Bridge Road. Google maps says it is on 8th St W.

It is near the Girard Point Bridge, which is at 39° 53′ 33″ N, 75° 11′ 49.2″ W, 39.8925, -75.197.

I have the following links for history of the bridge:

http://www.bedwell.net/liftbridge.html About 2005 renovations

http://en.wikipedia.org/wiki/Vertical-lift_bridge - Philadelphia Navy Yard

http://www.navyyard.org/uploads/files/newsletters/Newsletter... Brief mention of the bridge

I am attaching two photos of the bridge. Questions:

1) Does anyone have any history or other information on this bridge?

2) What mapping tool will allow me to pinpoint the coordinates?

3)At what point is it appropriate to add this bridge to BH?

Any help would be appreciated.