US Bridges

CO RD NW 200 over S Fk Blackwater Rv

Fair

Johnson County, Missouri · S 16 T 46 N R 28 W · Structure no. 20805

Built
1900
125 years old, rebuilt 1986
Condition
Fair
inspected November 2024
Type
Tee Beam
Prestressed Concrete
Length
136 ft
3 main spans
Daily traffic
93
2023 count
Owner
County
County Highway Agency

About this bridge

CO RD NW 200 over S Fk Blackwater Rv is a prestressed concrete tee beam carrying CO RD NW 200 over S Fk Blackwater Rv in Johnson County, Missouri. It was built in 1900 and reconstructed in 1986, so it is 125 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 93 vehicles a day, roughly 10% of them trucks, projected to reach 149 by 2043. The structure is 136 ft (41.5 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCO RD NW 200
CrossesS Fk Blackwater Rv
LocationS 16 T 46 N R 28 W
RouteCounty Highway 275
CountyJohnson County
StateMissouri
Coordinates38.80009, -94.02081
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.7 US tons
Inventory rating27.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length136 ft (41.5 m)
Longest span50 ft (15.2 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic93 (2023)
Projected traffic149 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 S Fk Blackwater Rv built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1986.

What condition is CO RD NW 200 over S Fk Blackwater Rv in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2024.

How much traffic does CO RD NW 200 over S Fk Blackwater Rv carry?

About 93 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is CO RD NW 200 over S Fk Blackwater Rv?

The structure is 136 ft (41.5 m) long with a longest span of 50 ft (15.2 m) and a deck 26 ft wide.

Who owns CO RD NW 200 over S Fk Blackwater Rv?

It is owned by the County Highway Agency.