US Bridges

Erastus-Durbin RD over Little Black Creek

Fair

Mercer County, Ohio · 0.5 MI N ST Rt 707 · Structure no. 5431786

Built
1980
45 years old
Condition
Fair
inspected December 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
55 ft
1 main span
Daily traffic
242
2015 count
Owner
County
County Highway Agency

About this bridge

Erastus-Durbin RD over Little Black Creek is a prestressed concrete box beam or girders - multiple carrying Erastus-Durbin RD over Little Black Creek in Mercer County, Ohio. It was built in 1980, so it is 45 years old, younger 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 242 vehicles a day, roughly 8% of them trucks, projected to reach 336 by 2035. The structure is 55 ft (16.8 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesErastus-Durbin RD
CrossesLittle Black Creek
Location0.5 MI N ST Rt 707
RouteCounty Highway C051A
StateOhio
Coordinates40.66321, -84.70859
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length55 ft (16.8 m)
Longest span51 ft (15.5 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic242 (2015)
Projected traffic336 by 2035
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Erastus-Durbin RD over Little Black Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is Erastus-Durbin RD over Little Black 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 Erastus-Durbin RD over Little Black Creek carry?

About 242 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is Erastus-Durbin RD over Little Black Creek?

The structure is 55 ft (16.8 m) long with a longest span of 51 ft (15.5 m) and a deck 24 ft wide.

Who owns Erastus-Durbin RD over Little Black Creek?

It is owned by the County Highway Agency.