Gridley Bridge

Photos 

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Photo taken April 1988 by John W. Gutowski for the Historic American Engineering Record View photos at Library of Congress

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Photo taken April 1988 by John W. Gutowski for the Historic American Engineering Record View photos at Library of Congress

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Photo taken April 1988 by John W. Gutowski for the Historic American Engineering Record View photos at Library of Congress

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Photo taken April 1988 by John W. Gutowski for the Historic American Engineering Record View photos at Library of Congress

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Photo taken April 1988 by John W. Gutowski for the Historic American Engineering Record View photos at Library of Congress

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Photo taken April 1988 by John W. Gutowski for the Historic American Engineering Record View photos at Library of Congress

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Photo taken April 1988 by John W. Gutowski for the Historic American Engineering Record View photos at Library of Congress

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Photo taken April 1988 by John W. Gutowski for the Historic American Engineering Record View photos at Library of Congress

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Photo taken April 1988 by John W. Gutowski for the Historic American Engineering Record View photos at Library of Congress

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Photo taken April 1988 by John W. Gutowski for the Historic American Engineering Record View photos at Library of Congress

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Photo taken April 1988 by John W. Gutowski for the Historic American Engineering Record View photos at Library of Congress

Map 

Facts 

Overview

Lost through truss over Grindstone Creek on Gridley Road, northwest of Cameron

Location

DeKalb County, Missouri

Status

Replaced by a concrete bridge

History

Built 1891-92 by the Dildine Bridge & Construction Co.; rehabilitated 1987; replaced 1994

Builder

- Dildine Bridge & Construction Co. of Cameron, Missouri

Design

Pin-connected, 5-panel Pratt through truss

Dimensions

Length of largest span: 83.8 ft.
Total length: 112.0 ft.
Deck width: 13.5 ft.
Vertical clearance above deck: 13.5 ft.

Approximate latitude, longitude

+39.80452, -94.27044   (decimal degrees)
39°48'16" N, 94°16'14" W   (degrees°minutes'seconds")

Approximate UTM coordinates

15/391245/4406833 (zone/easting/northing)

Land survey

T. 58 N., R. 30 W., Sec. 33

USGS topographic map

Fordham

Inventory numbers

MO 032-458001.6 (Missouri off-system bridge number)
BH 21440 (Bridgehunter.com ID)

Inspection (as of 01/1991)

Deck condition rating: Good (7 out of 9)
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 29.2 (out of 100)

Average daily traffic (as of 1991)

50

Categories 

Update Log 

• November 26, 2009: Posted HAER photos

Sources 

• HAER MO-74 - Grindstone Creek Bridge

Comments