US Bridges

E 12th ST over I-80

Good

Jasper County, Iowa · 2.0 Miles E of JCT Ia 14 · Structure no. 000000000031130

Built
1962
63 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
218 ft
4 main spans
Daily traffic
2,320
2022 count
Owner
State
State Highway Agency

About this bridge

E 12th ST over I-80 is a prestressed concrete stringer/multi-beam or girder carrying E 12th ST over I-80 in Jasper County, Iowa. It was built in 1962, so it is 63 years old, older 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 2,320 vehicles a day, projected to reach 2,320 by 2043. The structure is 218 ft (66.4 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesE 12th ST
CrossesI-80
Location2.0 Miles E of JCT Ia 14
RouteCity Street 0
CountyJasper County
StateIowa
Coordinates41.68296, -93.03901
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 inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating47.6 US tons
Inventory rating10.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length218 ft (66.4 m)
Longest span64 ft (19.5 m)
Deck width28 ft (8.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,320 (2022)
Projected traffic2,320 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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 E 12th ST over I-80 built?

It was built in 1962, making it 63 years old in 2025.

What condition is E 12th ST over I-80 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 December 2023.

How much traffic does E 12th ST over I-80 carry?

About 2,320 vehicles per day (2022 count).

How long is E 12th ST over I-80?

The structure is 218 ft (66.4 m) long with a longest span of 64 ft (19.5 m) and a deck 28 ft wide.

Who owns E 12th ST over I-80?

It is owned by the State Highway Agency.