US Bridges

HWY 965 over Iowa River

Good

Johnson County, Iowa · 081072206 · Structure no. 000000000031660

Built
1956
69 years old, rebuilt 2016
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
432 ft
4 main spans
Daily traffic
4,280
2021 count
Owner
County
County Highway Agency

About this bridge

HWY 965 over Iowa River is a steel continuous stringer/multi-beam or girder carrying HWY 965 over Iowa River in Johnson County, Iowa. It was built in 1956 and reconstructed in 2016, so it is 69 years old, older 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 4,280 vehicles a day, roughly 9% of them trucks, projected to reach 4,280 by 2043. The structure is 432 ft (131.7 m) long and 34 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesHWY 965
CrossesIowa River
Location081072206
RouteCounty Highway 0
CountyJohnson County
StateIowa
Coordinates41.80618, -91.65133
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.8 US tons
Inventory rating28.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length432 ft (131.7 m)
Longest span119 ft (36.3 m)
Deck width34 ft (10.3 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,280 (2021)
Projected traffic4,280 by 2043
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY 965 over Iowa River built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 2016.

What condition is HWY 965 over 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 April 2023.

How much traffic does HWY 965 over Iowa River carry?

About 4,280 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is HWY 965 over Iowa River?

The structure is 432 ft (131.7 m) long with a longest span of 119 ft (36.3 m) and a deck 34 ft wide.

Who owns HWY 965 over Iowa River?

It is owned by the County Highway Agency.