US Bridges

SR 912 over 25th AVE/177th ST

Fair

Lake County, Indiana · 00.18 W I-80 · Structure no. 033160

Built
1960
65 years old, rebuilt 1997
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
141 ft
3 main spans
Daily traffic
88,789
2004 count
Owner
State
State Highway Agency

About this bridge

SR 912 over 25th AVE/177th ST is a steel continuous stringer/multi-beam or girder carrying SR 912 over 25th AVE/177th ST in Lake County, Indiana. It was built in 1960 and reconstructed in 1997, so it is 65 years old, older than the Indiana average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 88,789 vehicles a day, roughly 5% of them trucks, projected to reach 125,103 by 2030. The structure is 141 ft (42.9 m) long and 124 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR 912
Crosses25th AVE/177th ST
Location00.18 W I-80
RouteState Highway 912
CountyLake County
StateIndiana
Coordinates41.5736, -87.43249
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating30.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length141 ft (42.9 m)
Longest span55 ft (16.7 m)
Deck width124 ft (37.9 m)
Roadway width119 ft (36.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic88,789 (2004)
Projected traffic125,103 by 2030
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

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 SR 912 over 25th AVE/177th ST built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1997.

What condition is SR 912 over 25th AVE/177th ST in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.

How much traffic does SR 912 over 25th AVE/177th ST carry?

About 88,789 vehicles per day (2004 count), of which roughly 5% are trucks.

How long is SR 912 over 25th AVE/177th ST?

The structure is 141 ft (42.9 m) long with a longest span of 55 ft (16.7 m) and a deck 124 ft wide.

Who owns SR 912 over 25th AVE/177th ST?

It is owned by the State Highway Agency.