Photo 

Overview

Photo taken 1998 by Jason Smith

Map 

Vicinity Map

Vicinity map

Map links:

Facts 

Overview
Three-span concrete arch bridge over West Fork Des Moines River on Sumner Avenue in Humboldt
Location
Humboldt County, Iowa
Status
Open to traffic
Future prospects
Scheduled for replacement
History
Built 1919
Design
Closed-spandrel arch
Dimensions
Length of largest span: 82.0 ft.
Total length: 296.9 ft.
Deck width: 25.3 ft.
Approximate latitude, longitude
+42.72108, -94.22156   (decimal degrees)
42°43'16" N, 94°13'18" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/399982/4730565 (zone/easting/northing)
USGS topographic map
Humboldt
Inventory numbers
IA 6140 (Iowa bridge number)
BH 13664 (Bridgehunter.com ID)
Inspection (as of 07/2007)
Superstructure condition rating: Poor (4 out of 9)
Substructure condition rating: Poor (4 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 15.6 (out of 100)
Average daily traffic (as of 2007)
4,080

Categories 

Arch (7,666)
Built 1919 (232)
Built during 1910s (4,375)
Closed-spandrel arch (1,157)
Deck arch (6,750)
Doomed (81)
Humboldt County, Iowa (17)
Iowa (2,170)
Open (21,981)
Owned by city (1,996)
Skewed (3,682)
Span length 75-100 feet (3,306)
Structurally deficient (12,027)
Total length 250-500 feet (2,170)

Update Log 

  • October 10, 2005: Posted photos from Jason Smith

Sources 

  • Jason Smith - JDSmith77 [at] gmx [dot] net