US Bridges

Mo 77 S over Sub Lateral of Lat

Good

Mississippi County, Missouri · S 3 T 24 N R 17 E · Structure no. 3091

Built
1984
41 years old
Condition
Good
inspected November 2023
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
351
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 77 S over Sub Lateral of Lat is a concrete continuous culvert carrying Mo 77 S over Sub Lateral of Lat in Mississippi County, Missouri. It was built in 1984, so it is 41 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 351 vehicles a day, roughly 26% of them trucks, projected to reach 491 by 2044. The structure is 23 ft (7 m) long. If it were closed, the detour would be 19.9 mi (32 km).

CarriesMo 77 S
CrossesSub Lateral of Lat
LocationS 3 T 24 N R 17 E
RouteState Highway 77
Coordinates36.74752, -89.21108
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.3 US tons
Inventory rating53.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length23 ft (7 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic351 (2024)
Projected traffic491 by 2044
Trucks26%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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 Sub Lateral of Lat built?

It was built in 1984, making it 41 years old in 2025.

What condition is Mo 77 S over Sub Lateral of Lat 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 Mo 77 S over Sub Lateral of Lat carry?

About 351 vehicles per day (2024 count), of which roughly 26% are trucks.

How long is Mo 77 S over Sub Lateral of Lat?

The structure is 23 ft (7 m) long with a longest span of 11 ft (3.4 m).

Who owns Mo 77 S over Sub Lateral of Lat?

It is owned by the State Highway Agency.