US Bridges

SR 65 over Blair Ditch

Fair

Gibson County, Indiana · 00.96 S SR 64 · Structure no. 023240

Built
1958
67 years old, rebuilt 2004
Condition
Fair
inspected June 2023
Type
Slab
Concrete Continuous
Length
102 ft
3 main spans
Daily traffic
4,110
2004 count
Owner
State
State Highway Agency

About this bridge

SR 65 over Blair Ditch is a concrete continuous slab carrying SR 65 over Blair Ditch in Gibson County, Indiana. It was built in 1958 and reconstructed in 2004, so it is 67 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 4,110 vehicles a day, roughly 10% of them trucks, projected to reach 6,823 by 2032. The structure is 102 ft (31 m) long and 33 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

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CarriesSR 65
CrossesBlair Ditch
Location00.96 S SR 64
RouteState Highway 65
CountyGibson County
StateIndiana
Coordinates38.34203, -87.68714
Functional classRural Major Collector

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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.5 US tons
Inventory rating57.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length102 ft (31 m)
Longest span40 ft (12.1 m)
Deck width33 ft (10 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,110 (2004)
Projected traffic6,823 by 2032
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 65 over Blair Ditch built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2004.

What condition is SR 65 over Blair 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 June 2023.

How much traffic does SR 65 over Blair Ditch carry?

About 4,110 vehicles per day (2004 count), of which roughly 10% are trucks.

How long is SR 65 over Blair Ditch?

The structure is 102 ft (31 m) long with a longest span of 40 ft (12.1 m) and a deck 33 ft wide.

Who owns SR 65 over Blair Ditch?

It is owned by the State Highway Agency.