US Bridges

US 65 over S. Fork Iowa River

Good

Hardin County, Iowa · 0.6 MI N of N JCT Ia 175 · Structure no. 000000000027091

Built
2007
18 years old
Condition
Good
inspected July 2023
Type
Slab
Concrete Continuous
Length
133 ft
3 main spans
Daily traffic
1,970
2022 count
Owner
State
State Highway Agency

About this bridge

US 65 over S. Fork Iowa River is a concrete continuous slab carrying US 65 over S. Fork Iowa River in Hardin County, Iowa. It was built in 2007, so it is 18 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,970 vehicles a day, roughly 19% of them trucks, projected to reach 1,970 by 2043. The structure is 133 ft (40.5 m) long and 43 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesUS 65
CrossesS. Fork Iowa River
Location0.6 MI N of N JCT Ia 175
RouteU.S. Route 65
StateIowa
Coordinates42.36968, -93.26112
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84.8 US tons
Inventory rating50.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length133 ft (40.5 m)
Longest span51 ft (15.5 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,970 (2022)
Projected traffic1,970 by 2043
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 65 over S. Fork Iowa River built?

It was built in 2007, making it 18 years old in 2025.

What condition is US 65 over S. Fork Iowa River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does US 65 over S. Fork Iowa River carry?

About 1,970 vehicles per day (2022 count), of which roughly 19% are trucks.

How long is US 65 over S. Fork Iowa River?

The structure is 133 ft (40.5 m) long with a longest span of 51 ft (15.5 m) and a deck 43 ft wide.

Who owns US 65 over S. Fork Iowa River?

It is owned by the State Highway Agency.