US Bridges

Fort Br RD over Big Branch

PoorPosted for load

Perry County, Kentucky · .05 MI SE of Ky 2447-B42 · Structure no. 097C00041N

Built
1970
55 years old
Condition
Poor
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
35 ft
1 main span
Daily traffic
197
2022 count
Owner
County
County Highway Agency

About this bridge

Fort Br RD over Big Branch is a steel stringer/multi-beam or girder carrying Fort Br RD over Big Branch in Perry 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 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 197 vehicles a day, projected to reach 197 by 2042. The structure is 35 ft (10.7 m) long and 17 ft wide. If it were closed, the detour would be 100 mi (161 km).

Location

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CarriesFort Br RD
CrossesBig Branch
Location.05 MI SE of Ky 2447-B42
RouteCounty Highway 1510
CountyPerry County
StateKentucky
Coordinates37.17306, -83.09056
Functional classRural Local

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating20.2 US tons
Inventory rating12.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length35 ft (10.7 m)
Longest span32 ft (9.9 m)
Deck width17 ft (5.3 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic197 (2022)
Projected traffic197 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed100 mi (161 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$78,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Fort Br RD over Big Branch built?

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

What condition is Fort Br RD over Big Branch 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 April 2024.

How much traffic does Fort Br RD over Big Branch carry?

About 197 vehicles per day (2022 count).

How long is Fort Br RD over Big Branch?

The structure is 35 ft (10.7 m) long with a longest span of 32 ft (9.9 m) and a deck 17 ft wide.

Who owns Fort Br RD over Big Branch?

It is owned by the County Highway Agency.