US Bridges

CO RD NW 1571 over Br N Fk Blackwater

Fair

Johnson County, Missouri · S 5 T 47 N R 28 W · Structure no. 12393

Built
1996
29 years old
Condition
Fair
inspected November 2022
Type
Slab
Concrete
Length
31 ft
1 main span
Daily traffic
40
2023 count
Owner
County
County Highway Agency

About this bridge

CO RD NW 1571 over Br N Fk Blackwater is a concrete slab carrying CO RD NW 1571 over Br N Fk Blackwater in Johnson County, Missouri. It was built in 1996, so it is 29 years old, younger 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 6 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 40 vehicles a day, roughly 10% of them trucks, projected to reach 64 by 2043. The structure is 31 ft (9.4 m) long and 23 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCO RD NW 1571
CrossesBr N Fk Blackwater
LocationS 5 T 47 N R 28 W
RouteCounty Highway 9
CountyJohnson County
StateMissouri
Coordinates38.91274, -94.03439
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
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 rating80.4 US tons
Inventory rating48.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadOther
Structure length31 ft (9.4 m)
Longest span28 ft (8.5 m)
Deck width23 ft (7 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2023)
Projected traffic64 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 1571 over Br N Fk Blackwater built?

It was built in 1996, making it 29 years old in 2025.

What condition is CO RD NW 1571 over Br N Fk Blackwater 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 2022.

How much traffic does CO RD NW 1571 over Br N Fk Blackwater carry?

About 40 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is CO RD NW 1571 over Br N Fk Blackwater?

The structure is 31 ft (9.4 m) long with a longest span of 28 ft (8.5 m) and a deck 23 ft wide.

Who owns CO RD NW 1571 over Br N Fk Blackwater?

It is owned by the County Highway Agency.