US Bridges

Mo 77 S over Dry CR

Fair

Scott County, Missouri · S 19 T 29 N R 13 E · Structure no. 5373

Built
1930
95 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete Continuous
Length
38 ft
3 main spans
Daily traffic
3,267
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 77 S over Dry CR is a concrete continuous culvert carrying Mo 77 S over Dry CR in Scott County, Missouri. It was built in 1930, so it is 95 years old, older than the Missouri average of 45.1 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 3,267 vehicles a day, roughly 6% of them trucks, projected to reach 4,737 by 2044. The structure is 38 ft (11.6 m) long and 37 ft wide. If it were closed, the detour would be 26.7 mi (43 km).

Location

Open in Google Maps
CarriesMo 77 S
CrossesDry CR
LocationS 19 T 29 N R 13 E
RouteState Highway 77
CountyScott County
StateMissouri
Coordinates37.16948, -89.66728
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating75.4 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadH 15
Structure length38 ft (11.6 m)
Longest span12 ft (3.7 m)
Deck width37 ft (11.3 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,267 (2024)
Projected traffic4,737 by 2044
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.7 mi (43 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 Mo 77 S over Dry CR built?

It was built in 1930, making it 95 years old in 2025.

What condition is Mo 77 S over Dry CR 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 January 2025.

How much traffic does Mo 77 S over Dry CR carry?

About 3,267 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is Mo 77 S over Dry CR?

The structure is 38 ft (11.6 m) long with a longest span of 12 ft (3.7 m) and a deck 37 ft wide.

Who owns Mo 77 S over Dry CR?

It is owned by the State Highway Agency.