US Bridges

Farm RD 171 over Lit Sac Rvr

FairPosted for load

Greene County, Missouri · S 16 T 30 N R 21 W · Structure no. 18065

Built
1981
44 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
81 ft
2 main spans
Daily traffic
100
2024 count
Owner
County
County Highway Agency

About this bridge

Farm RD 171 over Lit Sac Rvr is a steel stringer/multi-beam or girder carrying Farm RD 171 over Lit Sac Rvr in Greene County, Missouri. It was built in 1981, so it is 44 years old, younger 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. Its operating status is: posted for load restriction.

It carries about 100 vehicles a day, roughly 10% of them trucks, projected to reach 205 by 2044. The structure is 81 ft (24.7 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesFarm RD 171
CrossesLit Sac Rvr
LocationS 16 T 30 N R 21 W
RouteCounty Highway 171
CountyGreene County
StateMissouri
Coordinates37.31885, -93.24366
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating21.8 US tons
Inventory rating12.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length81 ft (24.7 m)
Longest span40 ft (12.2 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2024)
Projected traffic205 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Farm RD 171 over Lit Sac Rvr built?

It was built in 1981, making it 44 years old in 2025.

What condition is Farm RD 171 over Lit Sac 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 April 2024.

How much traffic does Farm RD 171 over Lit Sac Rvr carry?

About 100 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Farm RD 171 over Lit Sac Rvr?

The structure is 81 ft (24.7 m) long with a longest span of 40 ft (12.2 m) and a deck 24 ft wide.

Who owns Farm RD 171 over Lit Sac Rvr?

It is owned by the County Highway Agency.