US Bridges

Gubser Mill RD over 12 Mile Creek

FairPosted for load

Campbell County, Kentucky · 0.7 MI East of Calif · Structure no. 019C00055N

Built
1990
35 years old
Condition
Fair
inspected January 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
71 ft
2 main spans
Daily traffic
10
2006 count
Owner
County
County Highway Agency

About this bridge

Gubser Mill RD over 12 Mile Creek is a prestressed concrete box beam or girders - multiple carrying Gubser Mill RD over 12 Mile Creek in Campbell County, Kentucky. It was built in 1990, so it is 35 years old, younger than the Kentucky average of 46.6 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. Its operating status is: posted for load restriction.

It carries about 10 vehicles a day, projected to reach 20 by 2026. The structure is 71 ft (21.6 m) long and 15 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesGubser Mill RD
Crosses12 Mile Creek
Location0.7 MI East of Calif
RouteCounty Highway 1136
Coordinates38.88583, -84.29861
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating29.7 US tons
Inventory rating17.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length71 ft (21.6 m)
Longest span36 ft (11 m)
Deck width15 ft (4.6 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2006)
Projected traffic20 by 2026
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 Gubser Mill RD over 12 Mile Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is Gubser Mill RD over 12 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 January 2024.

How much traffic does Gubser Mill RD over 12 Mile Creek carry?

About 10 vehicles per day (2006 count).

How long is Gubser Mill RD over 12 Mile Creek?

The structure is 71 ft (21.6 m) long with a longest span of 36 ft (11 m) and a deck 15 ft wide.

Who owns Gubser Mill RD over 12 Mile Creek?

It is owned by the County Highway Agency.