Rating:
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Miller Bridge

Photos 

Photo Courtesy Indiana DHPA in August 2007

Enlarge

BH Photo #185743

Map 

Information From DHPA Historic Bridge Survey 

From Indiana DNR/DHPA

Statement of Significance:
The designer of this bridge had to alter standard through-girder plans to accommodate a considerable skew. The bridge is nicely decorated.

Architectural Description:
Because of its greater rigidity, the reinforced concrete through girder can be extended beyond the T-beam's ordinary limit of span (40' - 60' long). In a through structure, a pair of girders - large beams that receive their loads from other beams - flank the roadway and usually carry the deck above floor beams (which run from girder to girder and whose reinforcing rods are interlocked with those of the girders). The through girder is preferred where the roadway is not far above stream level and T-beams could obstruct the watercourse more than would girders which do some of their carrying above the level of the roadway.

The girders of this 41' structure are offset from one another by 30 degrees. Each girder is 3'5" high and 18" wide, spans 37', paneled, and with coping. Transverse floor beams carry a concrete deck and a 17'4" asphalt roadway. The girders rest upon concrete abutments which are in turn flanked by wingwalls.

Facts 

Overview
Concrete Through Girder bridge over Pike Creek on Mahalasville Road
Location
Morgan County, Indiana
Status
Replaced by a new bridge
History
Built 1925
Design
Rein conc girder (trans girder) floor beam system
Dimensions
Length of largest span: 38.7 ft.
Total length: 40.7 ft.
Deck width: 17.1 ft.
Recognition
Eligible for the National Register of Historic Places
Also called
Morgan County Bridge #30
Approximate latitude, longitude
+39.35583, -86.29889   (decimal degrees)
39°21'21" N, 86°17'56" W   (degrees°minutes'seconds")
Approximate UTM coordinates
16/560405/4356499 (zone/easting/northing)
Quadrangle map:
Morgantown
Average daily traffic (as of 2008)
160
Inventory numbers
INNBI 5500024 (Indiana bridge number on the National Bridge Inventory)
BH 46970 (Bridgehunter.com ID)
Inspection report (as of March 2008)
Overall condition: Poor
Superstructure condition rating: Poor (4 out of 9)
Substructure condition rating: Fair (5 out of 9)
Deck condition rating: Poor (4 out of 9)
Sufficiency rating: 34.2 (out of 100)
View more at BridgeReports.com

Categories 

Built 1925 (1,195)
Built during 1920s (9,277)
Concrete girder (899)
Girder (8,859)
Indiana (4,435)
Lost (20,799)
Morgan County, Indiana (68)
NR-eligible (3,990)
Non-Select (300)
Owned by county (19,493)
Replaced by new bridge (13,643)
Span length 25-50 feet (14,492)
Through girder (3,294)
Total length 25-50 feet (10,407)

Update Log 

  • May 4, 2018: Updated by Mike Daffron: Replaced by a new bridge w/ new photos
  • November 11, 2010: Essay added by Nathan Holth
  • November 11, 2010: Added by James Baughn

Sources 

  • Nathan Holth
  • Mike Daffron - daffmikron [at] gmail [dot] com