US Bridges

Mo 291 N over Missouri Rvr

PoorPosted for load

Jackson County, Missouri · S 12 T 50 N R 32 W · Structure no. 6353

Built
1949
76 years old, rebuilt 2002
Condition
Poor
inspected August 2023
Type
Truss - Thru
Steel Continuous
Length
1,884 ft
2 main spans
Daily traffic
16,351
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 291 N over Missouri Rvr is a steel continuous truss - thru carrying Mo 291 N over Missouri Rvr in Jackson County, Missouri. It was built in 1949 and reconstructed in 2002, so it is 76 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 16,351 vehicles a day, roughly 13% of them trucks, projected to reach 22,074 by 2044. The structure is 1,884 ft (574.2 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMo 291 N
CrossesMissouri Rvr
LocationS 12 T 50 N R 32 W
RouteState Highway 291
CountyJackson County
StateMissouri
Coordinates39.16787, -94.39489
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating43.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeTruss - Thru
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+6 approach)
Design loadH 20
Structure length1,884 ft (574.2 m)
Longest span460 ft (140.3 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck18 ft (5.5 m)

Traffic and service

Average daily traffic16,351 (2024)
Projected traffic22,074 by 2044
Trucks13%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$57.4 million (2025 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Mo 291 N over Missouri Rvr built?

It was built in 1949, making it 76 years old in 2025. It was reconstructed in 2002.

What condition is Mo 291 N over Missouri Rvr in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2023.

How much traffic does Mo 291 N over Missouri Rvr carry?

About 16,351 vehicles per day (2024 count), of which roughly 13% are trucks.

How long is Mo 291 N over Missouri Rvr?

The structure is 1,884 ft (574.2 m) long with a longest span of 460 ft (140.3 m) and a deck 27 ft wide.

Who owns Mo 291 N over Missouri Rvr?

It is owned by the State Highway Agency.