US Bridges

Rt Dd E over Musco CR

Good

St. Francois County, Missouri · S 4 T 34 N R 6 E · Structure no. 7984

Built
1956
69 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
348
2024 count
Owner
State
State Highway Agency

About this bridge

Rt Dd E over Musco CR is a concrete continuous culvert carrying Rt Dd E over Musco CR in St. Francois County, Missouri. It was built in 1956, so it is 69 years old, older 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 348 vehicles a day, roughly 10% of them trucks, projected to reach 557 by 2044. The structure is 23 ft (6.9 m) long and 26 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

CarriesRt Dd E
CrossesMusco CR
LocationS 4 T 34 N R 6 E
RouteState Highway 0DD
Coordinates37.67569, -90.36991
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating43.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 10
Structure length23 ft (6.9 m)
Longest span11 ft (3.4 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic348 (2024)
Projected traffic557 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 km)
TollOn a free road
National Highway SystemNo

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 Rt Dd E over Musco CR built?

It was built in 1956, making it 69 years old in 2025.

What condition is Rt Dd E over Musco 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 March 2023.

How much traffic does Rt Dd E over Musco CR carry?

About 348 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Rt Dd E over Musco CR?

The structure is 23 ft (6.9 m) long with a longest span of 11 ft (3.4 m) and a deck 26 ft wide.

Who owns Rt Dd E over Musco CR?

It is owned by the State Highway Agency.