US Bridges

US-45 over Key Creek

Fair

Graves County, Kentucky · 1.0 MI Nor. of Jksn Pur P · Structure no. 042B00008N

Built
1968
57 years old
Condition
Fair
inspected September 2024
Type
Tee Beam
Concrete
Length
104 ft
3 main spans
Daily traffic
16,933
2019 count
Owner
State
State Highway Agency

About this bridge

US-45 over Key Creek is a concrete tee beam carrying US-45 over Key Creek in Graves County, Kentucky. It was built in 1968, so it is 57 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 16,933 vehicles a day, roughly 10% of them trucks, projected to reach 16,933 by 2039. The structure is 104 ft (31.7 m) long and 92 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

Location

Open in Google Maps
CarriesUS-45
CrossesKey Creek
Location1.0 MI Nor. of Jksn Pur P
RouteU.S. Route 45
CountyGraves County
StateKentucky
Coordinates36.78417, -88.64528
Functional classUrban Other Principal Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating91.9 US tons
Inventory rating55.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length104 ft (31.7 m)
Longest span35 ft (10.7 m)
Deck width92 ft (28 m)
Roadway width88 ft (26.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,933 (2019)
Projected traffic16,933 by 2039
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 km)
TollOn a free road
National Highway SystemYes

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 US-45 over Key Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is US-45 over Key Creek 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 September 2024.

How much traffic does US-45 over Key Creek carry?

About 16,933 vehicles per day (2019 count), of which roughly 10% are trucks.

How long is US-45 over Key Creek?

The structure is 104 ft (31.7 m) long with a longest span of 35 ft (10.7 m) and a deck 92 ft wide.

Who owns US-45 over Key Creek?

It is owned by the State Highway Agency.