US Bridges

KY-1103 over Big Branch

Fair

Letcher County, Kentucky · JCT Ky 1103 & Big Branch · Structure no. 067B00071N

Built
1955
70 years old
Condition
Fair
inspected May 2024
Type
Culvert
Concrete
Length
38 ft
2 main spans
Daily traffic
214
2021 count
Owner
State
State Highway Agency

About this bridge

KY-1103 over Big Branch is a concrete culvert carrying KY-1103 over Big Branch in Letcher County, Kentucky. It was built in 1955, so it is 70 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 214 vehicles a day, projected to reach 214 by 2041. The structure is 38 ft (11.6 m) long and 35 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesKY-1103
CrossesBig Branch
LocationJCT Ky 1103 & Big Branch
RouteState Highway 1103
CountyLetcher County
StateKentucky
Coordinates37.07806, -82.98389
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 48 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 adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating70.1 US tons
Inventory rating42 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length38 ft (11.6 m)
Longest span18 ft (5.6 m)
Deck width35 ft (10.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic214 (2021)
Projected traffic214 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 KY-1103 over Big Branch built?

It was built in 1955, making it 70 years old in 2025.

What condition is KY-1103 over Big 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 May 2024.

How much traffic does KY-1103 over Big Branch carry?

About 214 vehicles per day (2021 count).

How long is KY-1103 over Big Branch?

The structure is 38 ft (11.6 m) long with a longest span of 18 ft (5.6 m) and a deck 35 ft wide.

Who owns KY-1103 over Big Branch?

It is owned by the State Highway Agency.