US Bridges

CO RD 1001 over Br Blackwater Rvr

FairPosted for load

Johnson County, Missouri · S 3 T 47 N R 24 W · Structure no. 28646

Built
1900
125 years old, rebuilt 2000
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
24 ft
1 main span
Daily traffic
45
2023 count
Owner
County
County Highway Agency

About this bridge

CO RD 1001 over Br Blackwater Rvr is a steel stringer/multi-beam or girder carrying CO RD 1001 over Br Blackwater Rvr in Johnson County, Missouri. It was built in 1900 and reconstructed in 2000, 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. 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 24 ft (7.3 m) long and 20 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCO RD 1001
CrossesBr Blackwater Rvr
LocationS 3 T 47 N R 24 W
RouteCounty Highway 179
CountyJohnson County
StateMissouri
Coordinates38.89093, -93.54967
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.
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 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating9.9 US tons
Inventory rating6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length24 ft (7.3 m)
Longest span21 ft (6.4 m)
Deck width20 ft (6 m)
Roadway width19 ft (5.8 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 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$255,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CO RD 1001 over Br Blackwater Rvr built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 2000.

What condition is CO RD 1001 over Br Blackwater Rvr 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 1001 over Br Blackwater Rvr carry?

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

How long is CO RD 1001 over Br Blackwater Rvr?

The structure is 24 ft (7.3 m) long with a longest span of 21 ft (6.4 m) and a deck 20 ft wide.

Who owns CO RD 1001 over Br Blackwater Rvr?

It is owned by the County Highway Agency.