US Bridges

Fairmount RD over Big Run

Fair

Jefferson County, Kentucky · 0.5 MI E of US 31E · Structure no. 056C00253N

Built
2007
18 years old
Condition
Fair
inspected January 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
34 ft
1 main span
Daily traffic
124
2011 count
Owner
County
County Highway Agency

About this bridge

Fairmount RD over Big Run is a prestressed concrete box beam or girders - single or spread carrying Fairmount RD over Big Run in Jefferson County, Kentucky. It was built in 2007, so it is 18 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 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 124 vehicles a day, projected to reach 229 by 2031. The structure is 34 ft (10.3 m) long and 22 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesFairmount RD
CrossesBig Run
Location0.5 MI E of US 31E
RouteCounty Highway 1004
CountyJefferson County
StateKentucky
Coordinates38.11556, -85.56139
Functional classUrban 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
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating100.8 US tons
Inventory rating60.4 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length34 ft (10.3 m)
Longest span32 ft (9.8 m)
Deck width22 ft (6.6 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic124 (2011)
Projected traffic229 by 2031
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Fairmount RD over Big Run built?

It was built in 2007, making it 18 years old in 2025.

What condition is Fairmount RD over Big Run 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 2024.

How much traffic does Fairmount RD over Big Run carry?

About 124 vehicles per day (2011 count).

How long is Fairmount RD over Big Run?

The structure is 34 ft (10.3 m) long with a longest span of 32 ft (9.8 m) and a deck 22 ft wide.

Who owns Fairmount RD over Big Run?

It is owned by the County Highway Agency.