US Bridges

US 68 over Cumberland River

Good

Trigg County, Kentucky · US 68 / Cumberland River · Structure no. 111B00068N

Built
2018
7 years old
Condition
Good
inspected August 2023
Type
Arch - Thru
Steel
Length
3,805 ft
1 main span
Daily traffic
4,908
2023 count
Owner
State
State Highway Agency

About this bridge

US 68 over Cumberland River is a steel arch - thru carrying US 68 over Cumberland River in Trigg County, Kentucky. It was built in 2018, so it is 7 years old, younger than the Kentucky average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,908 vehicles a day, roughly 20% of them trucks, projected to reach 4,908 by 2043. The structure is 3,805 ft (1,159.8 m) long and 75 ft wide. If it were closed, the detour would be 54.1 mi (87 km).

Location

Open in Google Maps
CarriesUS 68
CrossesCumberland River
LocationUS 68 / Cumberland River
RouteU.S. Route 68
CountyTrigg County
StateKentucky
Coordinates36.79972, -87.97667
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating41.4 US tons

Structure

Structure typeArch - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+13 approach)
Design loadGreater than HL 93
Structure length3,805 ft (1,159.8 m)
Longest span550 ft (167.6 m)
Deck width75 ft (23 m)
Roadway width62 ft (18.9 m)
Vertical clearance over deck23 ft (7 m)

Traffic and service

Average daily traffic4,908 (2023)
Projected traffic4,908 by 2043
Trucks20%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed54.1 mi (87 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was US 68 over Cumberland River built?

It was built in 2018, making it 7 years old in 2025.

What condition is US 68 over Cumberland River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.

How much traffic does US 68 over Cumberland River carry?

About 4,908 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is US 68 over Cumberland River?

The structure is 3,805 ft (1,159.8 m) long with a longest span of 550 ft (167.6 m) and a deck 75 ft wide.

Who owns US 68 over Cumberland River?

It is owned by the State Highway Agency.