US Bridges

SE 30th RD over Trib N Fk Spring R

Good

Barton County, Missouri · S 10 T 31 N R 29 W · Structure no. 23341

Built
1990
35 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
20
2023 count
Owner
County
County Highway Agency

About this bridge

SE 30th RD over Trib N Fk Spring R is a concrete continuous culvert carrying SE 30th RD over Trib N Fk Spring R in Barton County, Missouri. It was built in 1990, so it is 35 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 20 vehicles a day, roughly 10% of them trucks, projected to reach 28 by 2043. The structure is 23 ft (7 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSE 30th RD
CrossesTrib N Fk Spring R
LocationS 10 T 31 N R 29 W
RouteCounty Highway 404
CountyBarton County
StateMissouri
Coordinates37.45169, -94.10893
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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadOther
Structure length23 ft (7 m)
Longest span11 ft (3.4 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2023)
Projected traffic28 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 SE 30th RD over Trib N Fk Spring R built?

It was built in 1990, making it 35 years old in 2025.

What condition is SE 30th RD 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 March 2023.

How much traffic does SE 30th RD over Trib N Fk Spring R carry?

About 20 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is SE 30th RD over Trib N Fk Spring R?

The structure is 23 ft (7 m) long with a longest span of 11 ft (3.4 m) and a deck 30 ft wide.

Who owns SE 30th RD over Trib N Fk Spring R?

It is owned by the County Highway Agency.