US Bridges

Blackwell RD over Br of Lit Blue

Fair

Jackson County, Missouri · S 34 T 48 N R 31 W · Structure no. 30794

Built
2003
22 years old
Condition
Fair
inspected January 2023
Type
Culvert
Concrete Continuous
Length
102 ft
7 main spans
Daily traffic
3,500
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Blackwell RD over Br of Lit Blue is a concrete continuous culvert carrying Blackwell RD over Br of Lit Blue in Jackson County, Missouri. It was built in 2003, so it is 22 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 3,500 vehicles a day, roughly 5% of them trucks, projected to reach 4,550 by 2044. The structure is 102 ft (31.1 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesBlackwell RD
CrossesBr of Lit Blue
LocationS 34 T 48 N R 31 W
RouteCity Street 0
Coordinates38.92742, -94.31771
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans7
Design loadHS 20
Structure length102 ft (31.1 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,500 (2024)
Projected traffic4,550 by 2044
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Blackwell RD over Br of Lit Blue built?

It was built in 2003, making it 22 years old in 2025.

What condition is Blackwell RD over Br of Lit Blue 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 January 2023.

How much traffic does Blackwell RD over Br of Lit Blue carry?

About 3,500 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Blackwell RD over Br of Lit Blue?

The structure is 102 ft (31.1 m) long with a longest span of 14 ft (4.3 m).

Who owns Blackwell RD over Br of Lit Blue?

It is owned by the City or Municipal Highway Agency.