US Bridges

NB I-35 EB I-80 over UP RR

Good

Polk County, Iowa · 0.5 Mi. E of Jct. US 69 · Structure no. 000000000041671

Built
2000
25 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
298 ft
5 main spans
Daily traffic
42,300
2023 count
Owner
State
State Highway Agency

About this bridge

NB I-35 EB I-80 over UP RR is a prestressed concrete stringer/multi-beam or girder carrying NB I-35 EB I-80 over UP RR in Polk County, Iowa. It was built in 2000, so it is 25 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 42,300 vehicles a day, roughly 20% of them trucks, projected to reach 42,300 by 2043. The structure is 298 ft (90.8 m) long and 70 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNB I-35 EB I-80
CrossesUP RR
Location0.5 Mi. E of Jct. US 69
RouteInterstate 80
StateIowa
Coordinates41.6503, -93.59107
Functional classUrban Principal Arterial - Interstate

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 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92.3 US tons
Inventory rating54.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length298 ft (90.8 m)
Longest span77 ft (23.5 m)
Deck width70 ft (21.2 m)
Roadway width66 ft (20.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic42,300 (2023)
Projected traffic42,300 by 2043
Trucks20%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 NB I-35 EB I-80 over UP RR built?

It was built in 2000, making it 25 years old in 2025.

What condition is NB I-35 EB I-80 over UP RR 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 2023.

How much traffic does NB I-35 EB I-80 over UP RR carry?

About 42,300 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is NB I-35 EB I-80 over UP RR?

The structure is 298 ft (90.8 m) long with a longest span of 77 ft (23.5 m) and a deck 70 ft wide.

Who owns NB I-35 EB I-80 over UP RR?

It is owned by the State Highway Agency.