US Bridges

Mo 171 S over Spring Rvr Br

Fair

Jasper County, Missouri · S 4 T 28 N R 33 W · Structure no. 4835

Built
1925
100 years old, rebuilt 1962
Condition
Fair
inspected January 2024
Type
Culvert
Concrete Continuous
Length
27 ft
2 main spans
Daily traffic
6,150
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 171 S over Spring Rvr Br is a concrete continuous culvert carrying Mo 171 S over Spring Rvr Br in Jasper County, Missouri. It was built in 1925 and reconstructed in 1962, so it is 100 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 6 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 6,150 vehicles a day, roughly 10% of them trucks, projected to reach 9,533 by 2044. The structure is 27 ft (8.1 m) long and 42 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesMo 171 S
CrossesSpring Rvr Br
LocationS 4 T 28 N R 33 W
RouteState Highway 171
CountyJasper County
StateMissouri
Coordinates37.17925, -94.54318
Functional classUrban Other Principal 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.3 US tons
Inventory rating49.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length27 ft (8.1 m)
Longest span12 ft (3.7 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,150 (2024)
Projected traffic9,533 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemYes

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 171 S over Spring Rvr Br built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1962.

What condition is Mo 171 S over Spring Rvr Br 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 2024.

How much traffic does Mo 171 S over Spring Rvr Br carry?

About 6,150 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Mo 171 S over Spring Rvr Br?

The structure is 27 ft (8.1 m) long with a longest span of 12 ft (3.7 m) and a deck 42 ft wide.

Who owns Mo 171 S over Spring Rvr Br?

It is owned by the State Highway Agency.