US Bridges

US-79 over Dry Fork

Fair

Logan County, Kentucky · .6 MI N of JCT Ky 1151 · Structure no. 071B00024N

Built
1933
92 years old, rebuilt 2006
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
86 ft
2 main spans
Daily traffic
3,600
2023 count
Owner
State
State Highway Agency

About this bridge

US-79 over Dry Fork is a concrete stringer/multi-beam or girder carrying US-79 over Dry Fork in Logan County, Kentucky. It was built in 1933 and reconstructed in 2006, so it is 92 years old, older 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.

It carries about 3,600 vehicles a day, roughly 22% of them trucks, projected to reach 3,600 by 2043. The structure is 86 ft (26.2 m) long and 47 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesUS-79
CrossesDry Fork
Location.6 MI N of JCT Ky 1151
RouteU.S. Route 79
Coordinates36.79611, -86.9775
Functional classRural Principal Arterial - Other

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.5 US tons
Inventory rating45.3 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length86 ft (26.2 m)
Longest span40 ft (12.2 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,600 (2023)
Projected traffic3,600 by 2043
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 km)
TollOn a free road
National Highway SystemYes

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$258,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US-79 over Dry Fork built?

It was built in 1933, making it 92 years old in 2025. It was reconstructed in 2006.

What condition is US-79 over Dry Fork 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 October 2023.

How much traffic does US-79 over Dry Fork carry?

About 3,600 vehicles per day (2023 count), of which roughly 22% are trucks.

How long is US-79 over Dry Fork?

The structure is 86 ft (26.2 m) long with a longest span of 40 ft (12.2 m) and a deck 47 ft wide.

Who owns US-79 over Dry Fork?

It is owned by the State Highway Agency.