US Bridges

Old 68 over Straight Creek

Fair

Brown County, Ohio · Union & Pleas. Twp. Line · Structure no. 0830240

Built
1938
87 years old, rebuilt 1991
Condition
Fair
inspected December 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
143 ft
3 main spans
Daily traffic
379
2015 count
Owner
County
County Highway Agency

About this bridge

Old 68 over Straight Creek is a prestressed concrete box beam or girders - multiple carrying Old 68 over Straight Creek in Brown County, Ohio. It was built in 1938 and reconstructed in 1991, so it is 87 years old, older than the Ohio average of 47.3 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 379 vehicles a day, roughly 8% of them trucks, projected to reach 526 by 2035. The structure is 143 ft (43.6 m) long and 24 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesOld 68
CrossesStraight Creek
LocationUnion & Pleas. Twp. Line
RouteCounty Highway C0030
CountyBrown County
StateOhio
Coordinates38.79863, -83.88876
Functional classRural Minor 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length143 ft (43.6 m)
Longest span54 ft (16.5 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic379 (2015)
Projected traffic526 by 2035
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Old 68 over Straight Creek built?

It was built in 1938, making it 87 years old in 2025. It was reconstructed in 1991.

What condition is Old 68 over Straight 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 December 2024.

How much traffic does Old 68 over Straight Creek carry?

About 379 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is Old 68 over Straight Creek?

The structure is 143 ft (43.6 m) long with a longest span of 54 ft (16.5 m) and a deck 24 ft wide.

Who owns Old 68 over Straight Creek?

It is owned by the County Highway Agency.