US Bridges

KY-100 over Long Hollow Branch

Fair

Allen County, Kentucky · .70 MI East of JCT Ky 482 · Structure no. 002B00015N

Built
1933
92 years old
Condition
Fair
inspected April 2024
Type
Tee Beam
Concrete
Length
32 ft
1 main span
Daily traffic
2,292
2022 count
Owner
State
State Highway Agency

About this bridge

KY-100 over Long Hollow Branch is a concrete tee beam carrying KY-100 over Long Hollow Branch in Allen County, Kentucky. It was built in 1933, so it is 92 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.

It carries about 2,292 vehicles a day, roughly 17% of them trucks, projected to reach 2,292 by 2042. The structure is 32 ft (9.9 m) long and 23 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesKY-100
CrossesLong Hollow Branch
Location.70 MI East of JCT Ky 482
RouteState Highway 100
CountyAllen County
StateKentucky
Coordinates36.69278, -86.34528
Functional classRural Major 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating68.5 US tons
Inventory rating41.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length32 ft (9.9 m)
Longest span31 ft (9.5 m)
Deck width23 ft (6.9 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,292 (2022)
Projected traffic2,292 by 2042
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$81,000
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-100 over Long Hollow Branch built?

It was built in 1933, making it 92 years old in 2025.

What condition is KY-100 over Long Hollow 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 April 2024.

How much traffic does KY-100 over Long Hollow Branch carry?

About 2,292 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is KY-100 over Long Hollow Branch?

The structure is 32 ft (9.9 m) long with a longest span of 31 ft (9.5 m) and a deck 23 ft wide.

Who owns KY-100 over Long Hollow Branch?

It is owned by the State Highway Agency.