US Bridges

Howick Road over Eight Mile Creek

Fair

Mercer County, Ohio · 0.4 MI W Riley Road · Structure no. 5435307

Built
1963
62 years old, rebuilt 1992
Condition
Fair
inspected November 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
38 ft
1 main span
Daily traffic
433
2015 count
Owner
County
County Highway Agency

About this bridge

Howick Road over Eight Mile Creek is a prestressed concrete box beam or girders - multiple carrying Howick Road over Eight Mile Creek in Mercer County, Ohio. It was built in 1963 and reconstructed in 1992, so it is 62 years old, older 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 433 vehicles a day, roughly 7% of them trucks, projected to reach 601 by 2035. The structure is 38 ft (11.6 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesHowick Road
CrossesEight Mile Creek
Location0.4 MI W Riley Road
RouteCounty Highway C160B
StateOhio
Coordinates40.58231, -84.50143
Functional classRural Major Collector

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20 + Mod
Structure length38 ft (11.6 m)
Longest span35 ft (10.7 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic433 (2015)
Projected traffic601 by 2035
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$35,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Howick Road over Eight Mile Creek built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1992.

What condition is Howick Road over Eight Mile Creek 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 November 2024.

How much traffic does Howick Road over Eight Mile Creek carry?

About 433 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is Howick Road over Eight Mile Creek?

The structure is 38 ft (11.6 m) long with a longest span of 35 ft (10.7 m) and a deck 24 ft wide.

Who owns Howick Road over Eight Mile Creek?

It is owned by the County Highway Agency.