US Bridges

NB-9004 over Ky 2171

Fair

Hopkins County, Kentucky · Nbl 2.5 MI S of Ky 70 Ntr · Structure no. 054B00096R

Built
1961
64 years old
Condition
Fair
inspected May 2023
Type
Tee Beam
Concrete
Length
265 ft
5 main spans
Daily traffic
13,442
2022 count
Owner
State
State Highway Agency

About this bridge

NB-9004 over Ky 2171 is a concrete tee beam carrying NB-9004 over Ky 2171 in Hopkins County, Kentucky. It was built in 1961, so it is 64 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 13,442 vehicles a day, roughly 21% of them trucks, projected to reach 14,786 by 2042. The structure is 265 ft (80.8 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNB-9004
CrossesKy 2171
LocationNbl 2.5 MI S of Ky 70 Ntr
RouteInterstate 69
Coordinates37.29111, -87.46056
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionMay 2023
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating39.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length265 ft (80.8 m)
Longest span53 ft (16.2 m)
Deck width37 ft (11.3 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,442 (2022)
Projected traffic14,786 by 2042
Trucks21%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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$1.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was NB-9004 over Ky 2171 built?

It was built in 1961, making it 64 years old in 2025.

What condition is NB-9004 over Ky 2171 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 2023.

How much traffic does NB-9004 over Ky 2171 carry?

About 13,442 vehicles per day (2022 count), of which roughly 21% are trucks.

How long is NB-9004 over Ky 2171?

The structure is 265 ft (80.8 m) long with a longest span of 53 ft (16.2 m) and a deck 37 ft wide.

Who owns NB-9004 over Ky 2171?

It is owned by the State Highway Agency.