US Bridges

US 65 & 69 NB over Middle River

Good

Warren County, Iowa · 0.4 Mi. S of Jct. SR G-24 · Structure no. 000000000050911

Built
2016
9 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
362 ft
3 main spans
Daily traffic
8,950
2022 count
Owner
State
State Highway Agency

About this bridge

US 65 & 69 NB over Middle River is a prestressed concrete stringer/multi-beam or girder carrying US 65 & 69 NB over Middle River in Warren County, Iowa. It was built in 2016, so it is 9 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 8,950 vehicles a day, roughly 5% of them trucks, projected to reach 8,950 by 2044. The structure is 362 ft (110.4 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 65 & 69 NB
CrossesMiddle River
Location0.4 Mi. S of Jct. SR G-24
RouteU.S. Route 65
StateIowa
Coordinates41.43335, -93.55847
Functional classRural Principal Arterial - Other

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length362 ft (110.4 m)
Longest span157 ft (47.9 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,950 (2022)
Projected traffic8,950 by 2044
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 65 & 69 NB over Middle River built?

It was built in 2016, making it 9 years old in 2025.

What condition is US 65 & 69 NB over Middle 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 September 2024.

How much traffic does US 65 & 69 NB over Middle River carry?

About 8,950 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is US 65 & 69 NB over Middle River?

The structure is 362 ft (110.4 m) long with a longest span of 157 ft (47.9 m) and a deck 47 ft wide.

Who owns US 65 & 69 NB over Middle River?

It is owned by the State Highway Agency.