US Bridges

KY-1121 over Brush Creek

PoorPosted for load

Campbell County, Kentucky · 1.2 MI S of N-Jct Ky 10 · Structure no. 019B00029N

Built
1930
95 years old, rebuilt 1969
Condition
Poor
inspected August 2023
Type
Slab
Concrete
Length
24 ft
1 main span
Daily traffic
760
2022 count
Owner
State
State Highway Agency

About this bridge

KY-1121 over Brush Creek is a concrete slab carrying KY-1121 over Brush Creek in Campbell County, Kentucky. It was built in 1930 and reconstructed in 1969, so it is 95 years old, older than the Kentucky average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 760 vehicles a day, projected to reach 760 by 2042. The structure is 24 ft (7.3 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesKY-1121
CrossesBrush Creek
Location1.2 MI S of N-Jct Ky 10
RouteState Highway 1121
Coordinates38.94167, -84.37639
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating22 US tons
Inventory rating20 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span21 ft (6.4 m)
Deck width24 ft (7.2 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic760 (2022)
Projected traffic760 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$70,000
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-1121 over Brush Creek built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1969.

What condition is KY-1121 over Brush Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2023.

How much traffic does KY-1121 over Brush Creek carry?

About 760 vehicles per day (2022 count).

How long is KY-1121 over Brush Creek?

The structure is 24 ft (7.3 m) long with a longest span of 21 ft (6.4 m) and a deck 24 ft wide.

Who owns KY-1121 over Brush Creek?

It is owned by the State Highway Agency.