US Bridges

US 61 N over Buck Run CR

Good

Clark County, Missouri · S 9 T 63 N R 6 W · Structure no. 31566

Built
2006
19 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
136 ft
3 main spans
Daily traffic
8,055
2024 count
Owner
State
State Highway Agency

About this bridge

US 61 N over Buck Run CR is a prestressed concrete continuous stringer/multi-beam or girder carrying US 61 N over Buck Run CR in Clark County, Missouri. It was built in 2006, so it is 19 years old, younger than the Missouri average of 45.1 years.

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

It carries about 8,055 vehicles a day, roughly 48% of them trucks, projected to reach 15,305 by 2044. The structure is 136 ft (41.6 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 61 N
CrossesBuck Run CR
LocationS 9 T 63 N R 6 W
RouteU.S. Route 61
Coordinates40.26811, -91.55352
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating110.1 US tons
Inventory rating60.5 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length136 ft (41.6 m)
Longest span50 ft (15.2 m)
Deck width41 ft (12.4 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,055 (2024)
Projected traffic15,305 by 2044
Trucks48%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 61 N over Buck Run CR built?

It was built in 2006, making it 19 years old in 2025.

What condition is US 61 N over Buck Run CR 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 November 2023.

How much traffic does US 61 N over Buck Run CR carry?

About 8,055 vehicles per day (2024 count), of which roughly 48% are trucks.

How long is US 61 N over Buck Run CR?

The structure is 136 ft (41.6 m) long with a longest span of 50 ft (15.2 m) and a deck 41 ft wide.

Who owns US 61 N over Buck Run CR?

It is owned by the State Highway Agency.