US Bridges

Brockman RD over Chickasaw Creek

Good

Mercer County, Ohio · 0.6 MI E Harris RD · Structure no. 5436754

Built
2020
5 years old
Condition
Good
inspected November 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
250
2020 count
Owner
County
County Highway Agency

About this bridge

Brockman RD over Chickasaw Creek is a prestressed concrete box beam or girders - multiple carrying Brockman RD over Chickasaw Creek in Mercer County, Ohio. It was built in 2020, so it is 5 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 250 vehicles a day, roughly 10% of them trucks, projected to reach 459 by 2040. The structure is 40 ft (12.2 m) long and 40 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesBrockman RD
CrossesChickasaw Creek
Location0.6 MI E Harris RD
RouteCounty Highway T070B
StateOhio
Coordinates40.45161, -84.50027
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating60.7 US tons
Inventory rating46.4 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHL 93
Structure length40 ft (12.2 m)
Longest span37 ft (11.3 m)
Deck width40 ft (12.2 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2020)
Projected traffic459 by 2040
Trucks10%
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 Brockman RD over Chickasaw Creek built?

It was built in 2020, making it 5 years old in 2025.

What condition is Brockman RD over Chickasaw 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 November 2024.

How much traffic does Brockman RD over Chickasaw Creek carry?

About 250 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Brockman RD over Chickasaw Creek?

The structure is 40 ft (12.2 m) long with a longest span of 37 ft (11.3 m) and a deck 40 ft wide.

Who owns Brockman RD over Chickasaw Creek?

It is owned by the County Highway Agency.