US Bridges

NB US 65 & 69 over North River

Fair

Warren County, Iowa · 1.3 Mi. S of State HWY 5 · Structure no. 000000000050950

Built
1970
55 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
325 ft
3 main spans
Daily traffic
10,050
2022 count
Owner
State
State Highway Agency

About this bridge

NB US 65 & 69 over North River is a steel continuous stringer/multi-beam or girder carrying NB US 65 & 69 over North River in Warren County, Iowa. It was built in 1970, so it is 55 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 10,050 vehicles a day, roughly 5% of them trucks, projected to reach 10,050 by 2044. The structure is 325 ft (99.1 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNB US 65 & 69
CrossesNorth River
Location1.3 Mi. S of State HWY 5
RouteU.S. Route 65
StateIowa
Coordinates41.4877, -93.5661
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.9 US tons
Inventory rating42.4 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length325 ft (99.1 m)
Longest span125 ft (38.1 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,050 (2022)
Projected traffic10,050 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 NB US 65 & 69 over North River built?

It was built in 1970, making it 55 years old in 2025.

What condition is NB US 65 & 69 over North River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2024.

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

About 10,050 vehicles per day (2022 count), of which roughly 5% are trucks.

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

The structure is 325 ft (99.1 m) long with a longest span of 125 ft (38.1 m) and a deck 43 ft wide.

Who owns NB US 65 & 69 over North River?

It is owned by the State Highway Agency.