US Bridges

Round Mountain RD over Round Mt. Branch

FairPosted for load

Magoffin County, Kentucky · .05 MI W of JCT Ky 1081 · Structure no. 077C00022N

Built
1970
55 years old
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
103
2012 count
Owner
County
County Highway Agency

About this bridge

Round Mountain RD over Round Mt. Branch is a steel stringer/multi-beam or girder carrying Round Mountain RD over Round Mt. Branch in Magoffin County, Kentucky. It was built in 1970, so it is 55 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. Its operating status is: posted for load restriction.

It carries about 103 vehicles a day, projected to reach 103 by 2032. The structure is 40 ft (12.3 m) long and 17 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesRound Mountain RD
CrossesRound Mt. Branch
Location.05 MI W of JCT Ky 1081
RouteCounty Highway 1340
CountyMagoffin County
StateKentucky
Coordinates37.80111, -83.19667
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating57.1 US tons
Inventory rating34.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length40 ft (12.3 m)
Longest span38 ft (11.5 m)
Deck width17 ft (5.3 m)
Roadway width17 ft (5.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic103 (2012)
Projected traffic103 by 2032
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$106,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Round Mountain RD over Round Mt. Branch built?

It was built in 1970, making it 55 years old in 2025.

What condition is Round Mountain RD over Round Mt. Branch 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 January 2023.

How much traffic does Round Mountain RD over Round Mt. Branch carry?

About 103 vehicles per day (2012 count).

How long is Round Mountain RD over Round Mt. Branch?

The structure is 40 ft (12.3 m) long with a longest span of 38 ft (11.5 m) and a deck 17 ft wide.

Who owns Round Mountain RD over Round Mt. Branch?

It is owned by the County Highway Agency.