Home › Iowa › Pottawattamie County › I 29 SB US 6 EB over 9TH Ave

I 29 SB US 6 EB over 9TH Ave

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

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

I 29 SB US 6 EB over 9TH Ave in Pottawattamie 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 2023, making it 2 years old at the 2025 inventory.
It carries about 15,000 vehicles a day (traffic count year 2022).
Its listed owner is the state highway agency.
It is one of 219 of the 557 inventoried bridges in Pottawattamie County rated good (39.3%); 50 (9.0%) 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 107 ft
Location	0.6 Mi. S of Jct. U.S. 6
NBI structure number	000000000044751
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I-480 & US 6 over Missouri River & RR	1966	53,700	Fair
I-80 EB over Missouri River Rd & RR	1972	31,550	Fair
I 80 & US 6 over Little Mosquito Creek	1966	31,100	Fair
I 80 WB over Missouri Rvr Rd RR	2010	25,250	Good
I 29 SB over I-80 & I-29 Interchange	2014	23,900	Good
I-80 over Bedell Creek	1965	23,800	Fair