US Bridges

NW 80th LN over Drywood CR

Good

Barton County, Missouri · S 33 T 33 N R 32 W · Structure no. 12869

Built
1983
42 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
51 ft
1 main span
Daily traffic
30
2023 count
Owner
County
County Highway Agency

About this bridge

NW 80th LN over Drywood CR is a steel stringer/multi-beam or girder carrying NW 80th LN over Drywood CR in Barton County, Missouri. It was built in 1983, so it is 42 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 30 vehicles a day, roughly 10% of them trucks, projected to reach 42 by 2043. The structure is 51 ft (15.5 m) long and 22 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesNW 80th LN
CrossesDrywood CR
LocationS 33 T 33 N R 32 W
RouteCounty Highway 22
Coordinates37.56567, -94.43999
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo 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 evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating27.8 US tons
Inventory rating1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length51 ft (15.5 m)
Longest span47 ft (14.3 m)
Deck width22 ft (6.8 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2023)
Projected traffic42 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$399,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was NW 80th LN over Drywood CR built?

It was built in 1983, making it 42 years old in 2025.

What condition is NW 80th LN over Drywood 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 NW 80th LN over Drywood CR carry?

About 30 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is NW 80th LN over Drywood CR?

The structure is 51 ft (15.5 m) long with a longest span of 47 ft (14.3 m) and a deck 22 ft wide.

Who owns NW 80th LN over Drywood CR?

It is owned by the County Highway Agency.