US Bridges

US 65 NB over Ia 5

Good

Polk County, Iowa · At N Jct. of Ia 5 · Structure no. 000000000606755

Built
1997
28 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
281 ft
2 main spans
Daily traffic
8,900
2022 count
Owner
State
State Highway Agency

About this bridge

US 65 NB over Ia 5 is a steel continuous stringer/multi-beam or girder carrying US 65 NB over Ia 5 in Polk County, Iowa. It was built in 1997, so it is 28 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 8,900 vehicles a day, roughly 14% of them trucks, projected to reach 8,900 by 2042. The structure is 281 ft (85.6 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 65 NB
CrossesIa 5
LocationAt N Jct. of Ia 5
RouteU.S. Route 65
StateIowa
Coordinates41.51167, -93.52498
Functional classUrban Other Principal 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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.2 US tons
Inventory rating41.4 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length281 ft (85.6 m)
Longest span139 ft (42.4 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,900 (2022)
Projected traffic8,900 by 2042
Trucks14%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 65 NB over Ia 5 built?

It was built in 1997, making it 28 years old in 2025.

What condition is US 65 NB over Ia 5 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 May 2024.

How much traffic does US 65 NB over Ia 5 carry?

About 8,900 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is US 65 NB over Ia 5?

The structure is 281 ft (85.6 m) long with a longest span of 139 ft (42.4 m) and a deck 43 ft wide.

Who owns US 65 NB over Ia 5?

It is owned by the State Highway Agency.