US Bridges

Mo 20 E over Salt Fk CR

Fair

Lafayette County, Missouri · S 29 T 50 N R 24 W · Structure no. 2061

Built
1969
56 years old
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
128 ft
3 main spans
Daily traffic
1,619
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 20 E over Salt Fk CR is a steel continuous stringer/multi-beam or girder carrying Mo 20 E over Salt Fk CR in Lafayette County, Missouri. It was built in 1969, so it is 56 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 5 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 1,619 vehicles a day, roughly 15% of them trucks, projected to reach 2,590 by 2044. The structure is 128 ft (39 m) long and 41 ft wide. If it were closed, the detour would be 18 mi (29 km).

Location

Open in Google Maps
CarriesMo 20 E
CrossesSalt Fk CR
LocationS 29 T 50 N R 24 W
RouteState Highway 20
CountyLafayette County
StateMissouri
Coordinates39.10639, -93.5678
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.5 US tons
Inventory rating33.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length128 ft (39 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 traffic1,619 (2024)
Projected traffic2,590 by 2044
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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 20 E over Salt Fk CR built?

It was built in 1969, making it 56 years old in 2025.

What condition is Mo 20 E over Salt Fk 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 2023.

How much traffic does Mo 20 E over Salt Fk CR carry?

About 1,619 vehicles per day (2024 count), of which roughly 15% are trucks.

How long is Mo 20 E over Salt Fk CR?

The structure is 128 ft (39 m) long with a longest span of 50 ft (15.2 m) and a deck 41 ft wide.

Who owns Mo 20 E over Salt Fk CR?

It is owned by the State Highway Agency.