US Bridges

Stevenson Mill RD over Trib.-Mud River

Fair

Logan County, Kentucky · 2.4 MI E JCT Ky 79 · Structure no. 071C00073N

Built
1990
35 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
30 ft
1 main span
Daily traffic
505
2022 count
Owner
County
County Highway Agency

About this bridge

Stevenson Mill RD over Trib.-Mud River is a prestressed concrete box beam or girders - multiple carrying Stevenson Mill RD over Trib.-Mud River in Logan 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 5 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 505 vehicles a day, projected to reach 505 by 2042. The structure is 30 ft (9.1 m) long and 21 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

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CarriesStevenson Mill RD
CrossesTrib.-Mud River
Location2.4 MI E JCT Ky 79
RouteCounty Highway 1118
CountyLogan County
StateKentucky
Coordinates36.85389, -86.84167
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating64.3 US tons
Inventory rating38.6 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length30 ft (9.1 m)
Longest span28 ft (8.5 m)
Deck width21 ft (6.4 m)
Roadway width19 ft (5.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic505 (2022)
Projected traffic505 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 Stevenson Mill RD over Trib.-Mud River built?

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

What condition is Stevenson Mill RD over Trib.-Mud River 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 June 2023.

How much traffic does Stevenson Mill RD over Trib.-Mud River carry?

About 505 vehicles per day (2022 count).

How long is Stevenson Mill RD over Trib.-Mud River?

The structure is 30 ft (9.1 m) long with a longest span of 28 ft (8.5 m) and a deck 21 ft wide.

Who owns Stevenson Mill RD over Trib.-Mud River?

It is owned by the County Highway Agency.