US Bridges

Light RD over Mississinawa River

Good

Darke County, Ohio · .1 MI N Rossburg-Lights · Structure no. 1953753

Built
1993
32 years old
Condition
Good
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
81 ft
1 main span
Daily traffic
72
2015 count
Owner
County
County Highway Agency

About this bridge

Light RD over Mississinawa River is a prestressed concrete box beam or girders - multiple carrying Light RD over Mississinawa River in Darke County, Ohio. It was built in 1993, so it is 32 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 72 vehicles a day, roughly 7% of them trucks, projected to reach 100 by 2035. The structure is 81 ft (24.7 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesLight RD
CrossesMississinawa River
Location.1 MI N Rossburg-Lights
RouteCounty Highway T0133
StateOhio
Coordinates40.29299, -84.7378
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.4 US tons
Inventory rating47.8 US tons

Structure

MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length81 ft (24.7 m)
Longest span80 ft (24.4 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic72 (2015)
Projected traffic100 by 2035
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Light RD over Mississinawa River built?

It was built in 1993, making it 32 years old in 2025.

What condition is Light RD over Mississinawa River 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 August 2023.

How much traffic does Light RD over Mississinawa River carry?

About 72 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is Light RD over Mississinawa River?

The structure is 81 ft (24.7 m) long with a longest span of 80 ft (24.4 m) and a deck 28 ft wide.

Who owns Light RD over Mississinawa River?

It is owned by the County Highway Agency.