US Bridges

SW 90th RD over Duval CR

Good

Barton County, Missouri · S 11 T 30 N R 32 W · Structure no. 34732

Built
2015
10 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
85 ft
1 main span
Daily traffic
35
2023 count
Owner
County
County Highway Agency

About this bridge

SW 90th RD over Duval CR is a prestressed concrete stringer/multi-beam or girder carrying SW 90th RD over Duval CR in Barton County, Missouri. It was built in 2015, so it is 10 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 35 vehicles a day, roughly 10% of them trucks, projected to reach 49 by 2043. The structure is 85 ft (26 m) long and 25 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSW 90th RD
CrossesDuval CR
LocationS 11 T 30 N R 32 W
RouteCounty Highway 491
Coordinates37.37194, -94.42106
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
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating70.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length85 ft (26 m)
Longest span81 ft (24.8 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2023)
Projected traffic49 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 SW 90th RD over Duval CR built?

It was built in 2015, making it 10 years old in 2025.

What condition is SW 90th RD over Duval CR 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 SW 90th RD over Duval CR carry?

About 35 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is SW 90th RD over Duval CR?

The structure is 85 ft (26 m) long with a longest span of 81 ft (24.8 m) and a deck 25 ft wide.

Who owns SW 90th RD over Duval CR?

It is owned by the County Highway Agency.