US Bridges

4th ST over Back Creek

Fair

Grant County, Indiana · 00.13 MI W of Main ST · Structure no. 2700151

Built
1963
62 years old
Condition
Fair
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
28 ft
1 main span
Daily traffic
1,420
2021 count
Owner
County
County Highway Agency

About this bridge

4th ST over Back Creek is a prestressed concrete box beam or girders - multiple carrying 4th ST over Back Creek in Grant County, Indiana. It was built in 1963, so it is 62 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 5 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 1,420 vehicles a day, roughly 5% of them trucks, projected to reach 2,170 by 2041. The structure is 28 ft (8.4 m) long and 28 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
Carries4th ST
CrossesBack Creek
Location00.13 MI W of Main ST
RouteCity Street 0
CountyGrant County
StateIndiana
Coordinates40.4194, -85.652
Functional classUrban Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.8 US tons
Inventory rating39.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length28 ft (8.4 m)
Longest span27 ft (8.1 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,420 (2021)
Projected traffic2,170 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 4th ST over Back Creek built?

It was built in 1963, making it 62 years old in 2025.

What condition is 4th ST over Back Creek 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 October 2023.

How much traffic does 4th ST over Back Creek carry?

About 1,420 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is 4th ST over Back Creek?

The structure is 28 ft (8.4 m) long with a longest span of 27 ft (8.1 m) and a deck 28 ft wide.

Who owns 4th ST over Back Creek?

It is owned by the County Highway Agency.