US Bridges

SB I-35 WB I-80 over NE 3rd ST

Good

Polk County, Iowa · 0.3 Mi. E of Jct. 415 · Structure no. 000000000041621

Built
2000
25 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
123 ft
1 main span
Daily traffic
39,550
2022 count
Owner
State
State Highway Agency

About this bridge

SB I-35 WB I-80 over NE 3rd ST is a prestressed concrete stringer/multi-beam or girder carrying SB I-35 WB I-80 over NE 3rd ST 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 39,550 vehicles a day, roughly 22% of them trucks, projected to reach 39,550 by 2042. The structure is 123 ft (37.5 m) long and 64 ft wide.

CarriesSB I-35 WB I-80
CrossesNE 3rd ST
Location0.3 Mi. E of Jct. 415
RouteInterstate 80
StateIowa
Coordinates41.64958, -93.6149
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
Deck8 Very GoodNo problems noted.
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 geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95.6 US tons
Inventory rating36.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length123 ft (37.5 m)
Longest span120 ft (36.6 m)
Deck width64 ft (19.4 m)
Roadway width60 ft (18.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic39,550 (2022)
Projected traffic39,550 by 2042
Trucks22%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 NE 3rd ST built?

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

What condition is SB I-35 WB I-80 over NE 3rd ST 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 NE 3rd ST carry?

About 39,550 vehicles per day (2022 count), of which roughly 22% are trucks.

How long is SB I-35 WB I-80 over NE 3rd ST?

The structure is 123 ft (37.5 m) long with a longest span of 120 ft (36.6 m) and a deck 64 ft wide.

Who owns SB I-35 WB I-80 over NE 3rd ST?

It is owned by the State Highway Agency.