US Bridges

Southriver LN 289 over South Rvr

FairPosted for load

Ralls County, Missouri · S 4 T 56 N R 6 W · Structure no. 21091

Built
1924
101 years old
Condition
Fair
inspected June 2024
Type
Truss - Thru
Steel
Length
82 ft
1 main span
Daily traffic
35
2023 count
Owner
County
County Highway Agency

About this bridge

Southriver LN 289 over South Rvr is a steel truss - thru carrying Southriver LN 289 over South Rvr in Ralls County, Missouri. It was built in 1924, so it is 101 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. Its operating status is: posted for load restriction.

It carries about 35 vehicles a day, roughly 10% of them trucks, projected to reach 44 by 2043. The structure is 82 ft (25 m) long and 21 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSouthriver LN 289
CrossesSouth Rvr
LocationS 4 T 56 N R 6 W
RouteCounty Highway 289
CountyRalls County
StateMissouri
Coordinates39.685, -91.57897
Functional classRural Local

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25.8 US tons
Inventory rating14.9 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length82 ft (25 m)
Longest span80 ft (24.4 m)
Deck width21 ft (6.4 m)
Roadway width21 ft (6.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2023)
Projected traffic44 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Southriver LN 289 over South Rvr built?

It was built in 1924, making it 101 years old in 2025.

What condition is Southriver LN 289 over South Rvr 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 June 2024.

How much traffic does Southriver LN 289 over South Rvr carry?

About 35 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Southriver LN 289 over South Rvr?

The structure is 82 ft (25 m) long with a longest span of 80 ft (24.4 m) and a deck 21 ft wide.

Who owns Southriver LN 289 over South Rvr?

It is owned by the County Highway Agency.