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Ia 150 over Bear Creek

Buchanan County, Iowa · rated Good in the 2025 National Bridge Inventory

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

Ia 150 over Bear Creek in Buchanan County, Iowa, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
It was built in 2013, making it 12 years old at the 2025 inventory.
It carries about 4,650 vehicles a day (traffic count year 2022).
Its listed owner is the state highway agency.
It is one of 139 of the 320 inventoried bridges in Buchanan County rated good (43.4%); 20 (6.2%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Prestressed concrete stringer or multi-beam girder
Length	about 196 ft
Location	0.9 Mi. N of CR D-47
NBI structure number	000000000015921
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I-380 over Mud Creek	1983	17,700	Good
US 20 over Drainage Ditch	1980	10,700	Good
1ST St W over Wapsipinicon River	1917	10,258	Fair
US 20 over Drainage Ditch	1980	10,100	Good
US 20 over Drainage Ditch	1980	10,100	Fair
Ia 150 over Wapsipinicon River	1927	9,000	Fair