US Bridges

County RD 170 over Trib N Fk Spring R

Good

Jasper County, Missouri · S 20 T 30 N R 31 W · Structure no. 32177

Built
2006
19 years old
Condition
Good
inspected January 2025
Type
Culvert
Concrete Continuous
Length
41 ft
2 main spans
Daily traffic
15
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 170 over Trib N Fk Spring R is a concrete continuous culvert carrying County RD 170 over Trib N Fk Spring R in Jasper County, Missouri. It was built in 2006, so it is 19 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 15 vehicles a day, roughly 10% of them trucks, projected to reach 23 by 2043. The structure is 41 ft (12.5 m) long and 41 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty RD 170
CrossesTrib N Fk Spring R
LocationS 20 T 30 N R 31 W
RouteCounty Highway 38
CountyJasper County
StateMissouri
Coordinates37.3381, -94.35746
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length41 ft (12.5 m)
Longest span20 ft (6.1 m)
Deck width41 ft (12.6 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2023)
Projected traffic23 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 County RD 170 over Trib N Fk Spring R built?

It was built in 2006, making it 19 years old in 2025.

What condition is County RD 170 over Trib N Fk Spring R in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2025.

How much traffic does County RD 170 over Trib N Fk Spring R carry?

About 15 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD 170 over Trib N Fk Spring R?

The structure is 41 ft (12.5 m) long with a longest span of 20 ft (6.1 m) and a deck 41 ft wide.

Who owns County RD 170 over Trib N Fk Spring R?

It is owned by the County Highway Agency.