US Bridges

7th ST over Thompson Ditch

Fair

Vigo County, Indiana · 00.30 N Spinghill · Structure no. 8400168

Built
1979
46 years old
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
84 ft
3 main spans
Daily traffic
23,244
2017 count
Owner
County
County Highway Agency

About this bridge

7th ST over Thompson Ditch is a prestressed concrete box beam or girders - multiple carrying 7th ST over Thompson Ditch in Vigo County, Indiana. It was built in 1979, so it is 46 years old, younger 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 23,244 vehicles a day, roughly 4% of them trucks, projected to reach 31,798 by 2037. The structure is 84 ft (25.6 m) long and 64 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
Carries7th ST
CrossesThompson Ditch
Location00.30 N Spinghill
RouteCity Street 0
CountyVigo County
StateIndiana
Coordinates39.41662, -87.40685
Functional classUrban Minor Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.7 US tons
Inventory rating41.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length84 ft (25.6 m)
Longest span28 ft (8.5 m)
Deck width64 ft (19.6 m)
Roadway width55 ft (16.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,244 (2017)
Projected traffic31,798 by 2037
Trucks4%
Lanes on structure4
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 7th ST over Thompson Ditch built?

It was built in 1979, making it 46 years old in 2025.

What condition is 7th ST over Thompson Ditch 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 August 2023.

How much traffic does 7th ST over Thompson Ditch carry?

About 23,244 vehicles per day (2017 count), of which roughly 4% are trucks.

How long is 7th ST over Thompson Ditch?

The structure is 84 ft (25.6 m) long with a longest span of 28 ft (8.5 m) and a deck 64 ft wide.

Who owns 7th ST over Thompson Ditch?

It is owned by the County Highway Agency.