Bridgehunter.com | Hill's Mill Bridge

Share:

Photos

Photo taken by Jason Smith

Overview: Pratt through truss bridge over Upper Iowa River on Mill Road
Location: Lime Springs, Howard County, Iowa
Status: Open to traffic
History: Built 1902
Builder: - Carnegie Steel Co. of Pittsburgh, Pennsylvania
Design: Pin-connected Pratt through truss bridge with M-frame portal bracing
Dimensions: Length of largest span: 94.2 ft.
Total length: 122.1 ft.
Deck width: 15.7 ft.
Vertical clearance above deck: 11.8 ft.
Also called: Mill Road Bridge
Approximate latitude, longitude: +43.46757, -92.30774 (decimal degrees)
43°28'03" N, 92°18'28" W (degrees°minutes'seconds")
Approximate UTM coordinates: 15/555994/4812972 (zone/easting/northing)
Land survey: T. 100 N., R. 12 W., Sec. 19
USGS topographic map: Lime Springs
Inventory numbers: IA 183710 (Iowa bridge number)
BH 13648 (Bridgehunter.com ID)
Inspection (as of 04/2012): Deck condition rating: Poor (4 out of 9)
Superstructure condition rating: Serious (3 out of 9)
Substructure condition rating: Fair (5 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 15.7 (out of 100)
Average daily traffic (as of 2005): 30

September 22, 2012: New photos from Don Morrison
August 7, 2012: Updated by Jason Smith: Changed the name of the bridge to reflect on the local name
September 2, 2011: Updated by Jason Smith: Added information on the bridge