US Bridges

Mo 171 S over Bike Trail

Poor

Jasper County, Missouri · S 1 T 28 N R 32 W · Structure no. 2739

Built
1974
51 years old, rebuilt 2002
Condition
Poor
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
313 ft
5 main spans
Daily traffic
8,561
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 171 S over Bike Trail is a steel continuous stringer/multi-beam or girder carrying Mo 171 S over Bike Trail in Jasper County, Missouri. It was built in 1974 and reconstructed in 2002, so it is 51 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 8,561 vehicles a day, roughly 16% of them trucks, projected to reach 15,410 by 2044. The structure is 313 ft (95.4 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesMo 171 S
CrossesBike Trail
LocationS 1 T 28 N R 32 W
RouteState Highway 171
CountyJasper County
StateMissouri
Coordinates37.18014, -94.37412
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating39.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length313 ft (95.4 m)
Longest span79 ft (24.1 m)
Deck width42 ft (12.9 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,561 (2024)
Projected traffic15,410 by 2044
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed0.6 mi (1 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.1 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mo 171 S over Bike Trail built?

It was built in 1974, making it 51 years old in 2025. It was reconstructed in 2002.

What condition is Mo 171 S over Bike Trail in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2023.

How much traffic does Mo 171 S over Bike Trail carry?

About 8,561 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is Mo 171 S over Bike Trail?

The structure is 313 ft (95.4 m) long with a longest span of 79 ft (24.1 m) and a deck 42 ft wide.

Who owns Mo 171 S over Bike Trail?

It is owned by the State Highway Agency.