US Bridges

US Highway 641 Nc over Rockhouse Creek

Fair

Calloway County, Kentucky · 1.8 MI Sou. of Marshall C · Structure no. 018B00095L

Built
1976
49 years old
Condition
Fair
inspected April 2021
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
233 ft
3 main spans
Daily traffic
5,076
2022 count
Owner
State
State Highway Agency

About this bridge

US Highway 641 Nc over Rockhouse Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying US Highway 641 Nc over Rockhouse Creek in Calloway County, Kentucky. It was built in 1976, so it is 49 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 5,076 vehicles a day, roughly 15% of them trucks, projected to reach 5,076 by 2042. The structure is 233 ft (71 m) long and 44 ft wide.

CarriesUS Highway 641 Nc
CrossesRockhouse Creek
Location1.8 MI Sou. of Marshall C
RouteU.S. Route 641
Coordinates36.72417, -88.29944
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.1 US tons
Inventory rating40.2 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length233 ft (71 m)
Longest span80 ft (24.4 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,076 (2022)
Projected traffic5,076 by 2042
Trucks15%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US Highway 641 Nc over Rockhouse Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is US Highway 641 Nc over Rockhouse 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 April 2021.

How much traffic does US Highway 641 Nc over Rockhouse Creek carry?

About 5,076 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is US Highway 641 Nc over Rockhouse Creek?

The structure is 233 ft (71 m) long with a longest span of 80 ft (24.4 m) and a deck 44 ft wide.

Who owns US Highway 641 Nc over Rockhouse Creek?

It is owned by the State Highway Agency.