US Bridges

SW 70th LN over W Fk of Spring Rvr

FairPosted for load

Barton County, Missouri · S 27 T 32 N R 32 W · Structure no. 17911

Built
1991
34 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
34 ft
3 main spans
Daily traffic
30
2023 count
Owner
County
County Highway Agency

About this bridge

SW 70th LN over W Fk of Spring Rvr is a steel stringer/multi-beam or girder carrying SW 70th LN over W Fk of Spring Rvr in Barton County, Missouri. It was built in 1991, so it is 34 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 30 vehicles a day, roughly 10% of them trucks, projected to reach 42 by 2043. The structure is 34 ft (10.4 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSW 70th LN
CrossesW Fk of Spring Rvr
LocationS 27 T 32 N R 32 W
RouteCounty Highway 167
CountyBarton County
StateMissouri
Coordinates37.49061, -94.42662
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 rating32.7 US tons
Inventory rating21.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length34 ft (10.4 m)
Longest span15 ft (4.6 m)
Deck width24 ft (7.2 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2023)
Projected traffic42 by 2043
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 SW 70th LN over W Fk of Spring Rvr built?

It was built in 1991, making it 34 years old in 2025.

What condition is SW 70th LN over W Fk of Spring 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 March 2023.

How much traffic does SW 70th LN over W Fk of Spring Rvr carry?

About 30 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is SW 70th LN over W Fk of Spring Rvr?

The structure is 34 ft (10.4 m) long with a longest span of 15 ft (4.6 m) and a deck 24 ft wide.

Who owns SW 70th LN over W Fk of Spring Rvr?

It is owned by the County Highway Agency.