US Bridges

KY-120 over Slough of Tradewater Riv

PoorPosted for load

Crittenden County, Kentucky · .20 MI West of Webster Cl · Structure no. 028B00009N

Built
1955
70 years old
Condition
Poor
inspected March 2024
Type
Channel Beam
Concrete
Length
64 ft
2 main spans
Daily traffic
443
2020 count
Owner
State
State Highway Agency

About this bridge

KY-120 over Slough of Tradewater Riv is a concrete channel beam carrying KY-120 over Slough of Tradewater Riv in Crittenden County, Kentucky. It was built in 1955, so it is 70 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 443 vehicles a day, projected to reach 443 by 2040. The structure is 64 ft (19.5 m) long and 24 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesKY-120
CrossesSlough of Tradewater Riv
Location.20 MI West of Webster Cl
RouteState Highway 120
Coordinates37.39694, -87.8475
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating16.2 US tons
Inventory rating9.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadH 15
Structure length64 ft (19.5 m)
Longest span28 ft (8.5 m)
Deck width24 ft (7.4 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic443 (2020)
Projected traffic443 by 2040
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-120 over Slough of Tradewater Riv built?

It was built in 1955, making it 70 years old in 2025.

What condition is KY-120 over Slough of Tradewater Riv 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 March 2024.

How much traffic does KY-120 over Slough of Tradewater Riv carry?

About 443 vehicles per day (2020 count).

How long is KY-120 over Slough of Tradewater Riv?

The structure is 64 ft (19.5 m) long with a longest span of 28 ft (8.5 m) and a deck 24 ft wide.

Who owns KY-120 over Slough of Tradewater Riv?

It is owned by the State Highway Agency.