US Bridges

CO RD NW 200 over Mayes Blackwater R

GoodPosted for load

Johnson County, Missouri · S 22 T 46 N R 25 W · Structure no. 28685

Built
2000
25 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
52 ft
1 main span
Daily traffic
45
2023 count
Owner
County
County Highway Agency

About this bridge

CO RD NW 200 over Mayes Blackwater R is a steel stringer/multi-beam or girder carrying CO RD NW 200 over Mayes Blackwater R in Johnson County, Missouri. It was built in 2000, so it is 25 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. Its operating status is: posted for load restriction.

It carries about 45 vehicles a day, roughly 10% of them trucks, projected to reach 72 by 2043. The structure is 52 ft (15.8 m) long and 23 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesCO RD NW 200
CrossesMayes Blackwater R
LocationS 22 T 46 N R 25 W
RouteCounty Highway 241
Coordinates38.79299, -93.83197
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating23.8 US tons
Inventory rating13.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length52 ft (15.8 m)
Longest span49 ft (14.9 m)
Deck width23 ft (7 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2023)
Projected traffic72 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 CO RD NW 200 over Mayes Blackwater R built?

It was built in 2000, making it 25 years old in 2025.

What condition is CO RD NW 200 over Mayes Blackwater 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 November 2024.

How much traffic does CO RD NW 200 over Mayes Blackwater R carry?

About 45 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is CO RD NW 200 over Mayes Blackwater R?

The structure is 52 ft (15.8 m) long with a longest span of 49 ft (14.9 m) and a deck 23 ft wide.

Who owns CO RD NW 200 over Mayes Blackwater R?

It is owned by the County Highway Agency.