Home › Iowa › Jasper County › S 88TH Ave W over Walnut Creek

S 88TH Ave W over Walnut Creek

Jasper County, Iowa · rated Poor in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

S 88TH Ave W over Walnut Creek in Jasper County, Iowa, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 4 (poor condition) on the 0-9 scale.
It was built in 1926, making it 99 years old at the 2025 inventory.
It carries about 26 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 108 of the 382 inventoried bridges in Jasper County rated poor (28.3%); 108 (28.3%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Steel stringer or multi-beam girder
Length	about 34 ft
Location	078210901
NBI structure number	000000000195950
Condition class	Poor

Source: FHWA National Bridge Inventory, 2025 data as reported by the Iowa department of transportation.

Bridge	Built	Vehicles/day	Condition
I-80 over Drainage Ditch	1959	33,400	Fair
I-80 over Elk Creek	1961	30,500	Fair
I-80 over Drainage Ditch	1961	30,500	Fair
EB I-80 over West 148TH St South	1959	18,350	Fair
EB I-80 over South Skunk River	1960	18,350	Fair
WB I-80 over West 148TH Street South	1959	18,050	Fair