US Bridges

I 35 SB over E 1st Street

Good

Polk County, Iowa · 2.0 Mi. N of Jct. Ia 160 · Structure no. 000000000041801

Built
2020
5 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
237 ft
3 main spans
Daily traffic
25,550
2022 count
Owner
State
State Highway Agency

About this bridge

I 35 SB over E 1st Street is a prestressed concrete stringer/multi-beam or girder carrying I 35 SB over E 1st Street in Polk County, Iowa. It was built in 2020, so it is 5 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 25,550 vehicles a day, roughly 18% of them trucks, projected to reach 25,550 by 2044. The structure is 237 ft (72.2 m) long and 78 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 35 SB
CrossesE 1st Street
Location2.0 Mi. N of Jct. Ia 160
RouteInterstate 35
StateIowa
Coordinates41.73217, -93.57722
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 inspectionOctober 2024
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 rating46.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length237 ft (72.2 m)
Longest span142 ft (43.3 m)
Deck width78 ft (23.9 m)
Roadway width75 ft (23 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,550 (2022)
Projected traffic25,550 by 2044
Trucks18%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 I 35 SB over E 1st Street built?

It was built in 2020, making it 5 years old in 2025.

What condition is I 35 SB over E 1st Street 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 2024.

How much traffic does I 35 SB over E 1st Street carry?

About 25,550 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is I 35 SB over E 1st Street?

The structure is 237 ft (72.2 m) long with a longest span of 142 ft (43.3 m) and a deck 78 ft wide.

Who owns I 35 SB over E 1st Street?

It is owned by the State Highway Agency.