US Bridges

USR-36 over Spring Branch

Good

Darke County, Ohio · 4.36MI.E. of State Line · Structure no. 1900129

Built
1964
61 years old
Condition
Good
inspected May 2023
Type
Slab
Concrete Continuous
Length
120 ft
3 main spans
Daily traffic
2,679
2015 count
Owner
State
State Highway Agency

About this bridge

USR-36 over Spring Branch is a concrete continuous slab carrying USR-36 over Spring Branch in Darke County, Ohio. It was built in 1964, so it is 61 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 2,679 vehicles a day, roughly 17% of them trucks, projected to reach 3,718 by 2035. The structure is 120 ft (36.6 m) long and 40 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesUSR-36
CrossesSpring Branch
Location4.36MI.E. of State Line
RouteU.S. Route 36
CountyDarke County
StateOhio
Coordinates40.0513, -84.72776
Functional classRural Minor Arterial

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 protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating35.1 US tons
Inventory rating23.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length120 ft (36.6 m)
Longest span45 ft (13.7 m)
Deck width40 ft (12.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,679 (2015)
Projected traffic3,718 by 2035
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 USR-36 over Spring Branch built?

It was built in 1964, making it 61 years old in 2025.

What condition is USR-36 over Spring Branch 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 May 2023.

How much traffic does USR-36 over Spring Branch carry?

About 2,679 vehicles per day (2015 count), of which roughly 17% are trucks.

How long is USR-36 over Spring Branch?

The structure is 120 ft (36.6 m) long with a longest span of 45 ft (13.7 m) and a deck 40 ft wide.

Who owns USR-36 over Spring Branch?

It is owned by the State Highway Agency.