US Bridges

KY-100 over Barren River

FairPosted for load

Allen County, Kentucky · 1.4 MI East of JCT Ky 99 · Structure no. 002B00009N

Built
1963
62 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
364 ft
3 main spans
Daily traffic
295
2023 count
Owner
State
State Highway Agency

About this bridge

KY-100 over Barren River is a steel continuous stringer/multi-beam or girder carrying KY-100 over Barren River in Allen County, Kentucky. It was built in 1963, so it is 62 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 5 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 295 vehicles a day, projected to reach 295 by 2043. The structure is 364 ft (110.9 m) long and 31 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

Location

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CarriesKY-100
CrossesBarren River
Location1.4 MI East of JCT Ky 99
RouteState Highway 100
CountyAllen County
StateKentucky
Coordinates36.69639, -86.04667
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.8 US tons
Inventory rating28.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length364 ft (110.9 m)
Longest span150 ft (45.7 m)
Deck width31 ft (9.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic295 (2023)
Projected traffic295 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-100 over Barren River built?

It was built in 1963, making it 62 years old in 2025.

What condition is KY-100 over Barren River 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 April 2024.

How much traffic does KY-100 over Barren River carry?

About 295 vehicles per day (2023 count).

How long is KY-100 over Barren River?

The structure is 364 ft (110.9 m) long with a longest span of 150 ft (45.7 m) and a deck 31 ft wide.

Who owns KY-100 over Barren River?

It is owned by the State Highway Agency.