US Bridges

SB I-35 WB I-80 over UP RR

Good

Polk County, Iowa · 0.5 Mi. E of Jct. US 69 · Structure no. 000000000041681

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
41,550
2022 count
Owner
State
State Highway Agency

About this bridge

SB I-35 WB I-80 over UP RR is a prestressed concrete stringer/multi-beam or girder carrying SB I-35 WB 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 41,550 vehicles a day, roughly 20% of them trucks, projected to reach 41,550 by 2042. 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).

CarriesSB I-35 WB I-80
CrossesUP RR
Location0.5 Mi. E of Jct. US 69
RouteInterstate 80
StateIowa
Coordinates41.65054, -93.58999
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.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating36 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 traffic41,550 (2022)
Projected traffic41,550 by 2042
Trucks20%
Lanes on structure3
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 SB I-35 WB I-80 over UP RR built?

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

What condition is SB I-35 WB 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 SB I-35 WB I-80 over UP RR carry?

About 41,550 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is SB I-35 WB 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 SB I-35 WB I-80 over UP RR?

It is owned by the State Highway Agency.