US Bridges

US 69 N over Line CR

FairPosted for load

Platte County, Missouri · S 4 T 50 N R 33 W · Structure no. 1715

Built
1969
56 years old, rebuilt 1989
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
314 ft
3 main spans
Daily traffic
11,326
2024 count
Owner
State
State Highway Agency

About this bridge

US 69 N over Line CR is a steel continuous stringer/multi-beam or girder carrying US 69 N over Line CR in Platte County, Missouri. It was built in 1969 and reconstructed in 1989, so it is 56 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 5 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 11,326 vehicles a day, roughly 12% of them trucks, projected to reach 23,218 by 2044. The structure is 314 ft (95.7 m) long and 49 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS 69 N
CrossesLine CR
LocationS 4 T 50 N R 33 W
RouteU.S. Route 69
Coordinates39.16819, -94.61688
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.5 US tons
Inventory rating36.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length314 ft (95.7 m)
Longest span121 ft (36.9 m)
Deck width49 ft (14.8 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,326 (2024)
Projected traffic23,218 by 2044
Trucks12%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 69 N over Line CR built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 1989.

What condition is US 69 N over Line CR 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 October 2024.

How much traffic does US 69 N over Line CR carry?

About 11,326 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is US 69 N over Line CR?

The structure is 314 ft (95.7 m) long with a longest span of 121 ft (36.9 m) and a deck 49 ft wide.

Who owns US 69 N over Line CR?

It is owned by the State Highway Agency.