US Bridges

SR-29 over Little Darby Creek

Good

Champaign County, Ohio · .35MI.SE. of Jct. SR-4 · Structure no. 1100661

Built
1961
64 years old
Condition
Good
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
3,269
2015 count
Owner
State
State Highway Agency

About this bridge

SR-29 over Little Darby Creek is a prestressed concrete box beam or girders - multiple carrying SR-29 over Little Darby Creek in Champaign County, Ohio. It was built in 1961, so it is 64 years old, older than the Ohio average of 47.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,269 vehicles a day, roughly 7% of them trucks, projected to reach 4,537 by 2035. The structure is 70 ft (21.4 m) long and 37 ft wide. If it were closed, the detour would be 21.1 mi (34 km).

CarriesSR-29
CrossesLittle Darby Creek
Location.35MI.SE. of Jct. SR-4
RouteState Highway 29
StateOhio
Coordinates40.0682, -83.55178
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 alignment7: Better than 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
Structure length70 ft (21.4 m)
Longest span69 ft (21 m)
Deck width37 ft (11.4 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,269 (2015)
Projected traffic4,537 by 2035
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed21.1 mi (34 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-29 over Little Darby Creek built?

It was built in 1961, making it 64 years old in 2025.

What condition is SR-29 over Little Darby Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.

How much traffic does SR-29 over Little Darby Creek carry?

About 3,269 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is SR-29 over Little Darby Creek?

The structure is 70 ft (21.4 m) long with a longest span of 69 ft (21 m) and a deck 37 ft wide.

Who owns SR-29 over Little Darby Creek?

It is owned by the State Highway Agency.