US Bridges

39th ST over Lit Blue Rvr

Good

Jackson County, Missouri · S 21 T 49 N R 31 W · Structure no. 34361

Built
2013
12 years old
Condition
Good
inspected January 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
241 ft
3 main spans
Daily traffic
8,710
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

39th ST over Lit Blue Rvr is a prestressed concrete continuous stringer/multi-beam or girder carrying 39th ST over Lit Blue Rvr in Jackson County, Missouri. It was built in 2013, so it is 12 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.

It carries about 8,710 vehicles a day, roughly 10% of them trucks, projected to reach 11,323 by 2044. The structure is 241 ft (73.4 m) long and 88 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries39th ST
CrossesLit Blue Rvr
LocationS 21 T 49 N R 31 W
RouteCity Street 39
Coordinates39.04736, -94.33723
Functional classUrban Minor Arterial

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.4 US tons
Inventory rating39.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length241 ft (73.4 m)
Longest span80 ft (24.5 m)
Deck width88 ft (26.9 m)
Roadway width53 ft (16.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,710 (2024)
Projected traffic11,323 by 2044
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 39th ST over Lit Blue Rvr built?

It was built in 2013, making it 12 years old in 2025.

What condition is 39th ST over Lit Blue Rvr 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 January 2023.

How much traffic does 39th ST over Lit Blue Rvr carry?

About 8,710 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is 39th ST over Lit Blue Rvr?

The structure is 241 ft (73.4 m) long with a longest span of 80 ft (24.5 m) and a deck 88 ft wide.

Who owns 39th ST over Lit Blue Rvr?

It is owned by the City or Municipal Highway Agency.