US Bridges

Boyer Road over Powell Dt

Fair

Darke County, Ohio · .51 N Martz Road · Structure no. 1959514

Built
1997
28 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
41 ft
1 main span
Daily traffic
477
2015 count
Owner
County
County Highway Agency

About this bridge

Boyer Road over Powell Dt is a prestressed concrete box beam or girders - multiple carrying Boyer Road over Powell Dt in Darke County, Ohio. It was built in 1997, so it is 28 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 477 vehicles a day, roughly 8% of them trucks, projected to reach 662 by 2035. The structure is 41 ft (12.5 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesBoyer Road
CrossesPowell Dt
Location.51 N Martz Road
RouteCounty Highway C0100
StateOhio
Coordinates40.20389, -84.50333
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.8 US tons
Inventory rating40 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20 + Mod
Structure length41 ft (12.5 m)
Longest span39 ft (11.9 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic477 (2015)
Projected traffic662 by 2035
Trucks8%
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 Boyer Road over Powell Dt built?

It was built in 1997, making it 28 years old in 2025.

What condition is Boyer Road over Powell Dt 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 October 2024.

How much traffic does Boyer Road over Powell Dt carry?

About 477 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is Boyer Road over Powell Dt?

The structure is 41 ft (12.5 m) long with a longest span of 39 ft (11.9 m) and a deck 28 ft wide.

Who owns Boyer Road over Powell Dt?

It is owned by the County Highway Agency.