US Bridges

Dull Road over Roberson Dt

Good

Darke County, Ohio · .3 MI W of Gordon-Landis · Structure no. 1934198

Built
2008
17 years old
Condition
Good
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
33 ft
1 main span
Daily traffic
351
2015 count
Owner
County
County Highway Agency

About this bridge

Dull Road over Roberson Dt is a prestressed concrete box beam or girders - multiple carrying Dull Road over Roberson Dt in Darke County, Ohio. It was built in 2008, so it is 17 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 351 vehicles a day, roughly 7% of them trucks, projected to reach 487 by 2035. The structure is 33 ft (10.1 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesDull Road
CrossesRoberson Dt
Location.3 MI W of Gordon-Landis
RouteCounty Highway T0081
StateOhio
Coordinates39.97246, -84.52032
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 protection8 Very GoodNo problems noted.
Last inspectionSeptember 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating90.7 US tons
Inventory rating54.2 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length33 ft (10.1 m)
Longest span29 ft (8.8 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic351 (2015)
Projected traffic487 by 2035
Trucks7%
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 Dull Road over Roberson Dt built?

It was built in 2008, making it 17 years old in 2025.

What condition is Dull Road over Roberson Dt 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 September 2023.

How much traffic does Dull Road over Roberson Dt carry?

About 351 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is Dull Road over Roberson Dt?

The structure is 33 ft (10.1 m) long with a longest span of 29 ft (8.8 m) and a deck 28 ft wide.

Who owns Dull Road over Roberson Dt?

It is owned by the County Highway Agency.