US Bridges

Ralph Mcpherson RD over Sinking Creek

Fair

Logan County, Kentucky · 0.5 MI S of JCT W/ Ky 663 · Structure no. 071C00089N

Built
2001
24 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
55 ft
1 main span
Daily traffic
138
2022 count
Owner
County
County Highway Agency

About this bridge

Ralph Mcpherson RD over Sinking Creek is a prestressed concrete box beam or girders - multiple carrying Ralph Mcpherson RD over Sinking Creek in Logan County, Kentucky. It was built in 2001, so it is 24 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 138 vehicles a day, projected to reach 138 by 2042. The structure is 55 ft (16.8 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesRalph Mcpherson RD
CrossesSinking Creek
Location0.5 MI S of JCT W/ Ky 663
RouteCounty Highway 1165
CountyLogan County
StateKentucky
Coordinates36.71333, -86.81694
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating91.1 US tons
Inventory rating54.6 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length55 ft (16.8 m)
Longest span53 ft (16.2 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic138 (2022)
Projected traffic138 by 2042
Trucks0%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ralph Mcpherson RD over Sinking Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is Ralph Mcpherson RD over Sinking 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 June 2023.

How much traffic does Ralph Mcpherson RD over Sinking Creek carry?

About 138 vehicles per day (2022 count).

How long is Ralph Mcpherson RD over Sinking Creek?

The structure is 55 ft (16.8 m) long with a longest span of 53 ft (16.2 m) and a deck 24 ft wide.

Who owns Ralph Mcpherson RD over Sinking Creek?

It is owned by the County Highway Agency.