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Local over Raven Creek

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

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

Local over Raven Creek in Tama County, Iowa, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
It was built in 1940, making it 85 years old at the 2025 inventory.
It carries about 29 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 107 of the 337 inventoried bridges in Tama County rated poor (31.8%); 107 (31.8%) 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 42 ft
Location	082160604
NBI structure number	000000000317270
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
US 30 over Stream	1996	11,500	Good
US 30 WB over Slip Bridge Ramp	2010	7,600	Good
US 30 WB over Salt Creek	2019	6,600	Good
US 30 over Trib to Iowa River	2008	6,500	Good
US 30 WB over Iowa River	2002	5,950	Good
US 30 WB over Iowa River East Overflow	2021	5,950	Good