US Bridges

US 61 S over Muddy CR

Good

Jefferson County, Missouri · S 1 T 39 N R 6 E · Structure no. 32676

Built
2009
16 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
75 ft
1 main span
Daily traffic
6,646
2024 count
Owner
State
State Highway Agency

About this bridge

US 61 S over Muddy CR is a prestressed concrete stringer/multi-beam or girder carrying US 61 S over Muddy CR in Jefferson County, Missouri. It was built in 2009, so it is 16 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 6,646 vehicles a day, roughly 15% of them trucks, projected to reach 11,963 by 2044. The structure is 75 ft (22.9 m) long and 47 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesUS 61 S
CrossesMuddy CR
LocationS 1 T 39 N R 6 E
RouteU.S. Route 61
Coordinates38.13912, -90.31643
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.4 US tons
Inventory rating34.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length75 ft (22.9 m)
Longest span72 ft (21.9 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,646 (2024)
Projected traffic11,963 by 2044
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

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 S over Muddy CR built?

It was built in 2009, making it 16 years old in 2025.

What condition is US 61 S over Muddy 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 2024.

How much traffic does US 61 S over Muddy CR carry?

About 6,646 vehicles per day (2024 count), of which roughly 15% are trucks.

How long is US 61 S over Muddy CR?

The structure is 75 ft (22.9 m) long with a longest span of 72 ft (21.9 m) and a deck 47 ft wide.

Who owns US 61 S over Muddy CR?

It is owned by the State Highway Agency.