US Bridges

NE 56th ST over US 65

Good

Polk County, Iowa · 2.1 Mi. S of Jct. I-80 · Structure no. 000000000601360

Built
1994
31 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
652 ft
4 main spans
Daily traffic
11,256
2022 count
Owner
State
State Highway Agency

About this bridge

NE 56th ST over US 65 is a steel continuous stringer/multi-beam or girder carrying NE 56th ST over US 65 in Polk County, Iowa. It was built in 1994, so it is 31 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 11,256 vehicles a day, projected to reach 11,256 by 2043. The structure is 652 ft (198.7 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNE 56th ST
CrossesUS 65
Location2.1 Mi. S of Jct. I-80
RouteCounty Highway 0
CountyPolk County
StateIowa
Coordinates41.63272, -93.50322
Functional classUrban 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.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.1 US tons
Inventory rating35.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length652 ft (198.7 m)
Longest span210 ft (64 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,256 (2022)
Projected traffic11,256 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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 NE 56th ST over US 65 built?

It was built in 1994, making it 31 years old in 2025.

What condition is NE 56th ST over US 65 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 October 2023.

How much traffic does NE 56th ST over US 65 carry?

About 11,256 vehicles per day (2022 count).

How long is NE 56th ST over US 65?

The structure is 652 ft (198.7 m) long with a longest span of 210 ft (64 m) and a deck 43 ft wide.

Who owns NE 56th ST over US 65?

It is owned by the State Highway Agency.