US Bridges

N Marietta ST over Fk of Fishing Rvr

FairPosted for load

Clay County, Missouri · S 1 T 52 N R 30 W · Structure no. 16936

Built
1920
105 years old, rebuilt 1983
Condition
Fair
inspected December 2023
Type
Slab
Concrete
Length
48 ft
1 main span
Daily traffic
120
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

N Marietta ST over Fk of Fishing Rvr is a concrete slab carrying N Marietta ST over Fk of Fishing Rvr in Clay County, Missouri. It was built in 1920 and reconstructed in 1983, so it is 105 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 120 vehicles a day, roughly 10% of them trucks, projected to reach 192 by 2044. The structure is 48 ft (14.6 m) long and 35 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesN Marietta ST
CrossesFk of Fishing Rvr
LocationS 1 T 52 N R 30 W
RouteCity Street 0
Coordinates39.34477, -94.22426
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating38.7 US tons
Inventory rating25.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length48 ft (14.6 m)
Longest span48 ft (14.6 m)
Deck width35 ft (10.8 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2024)
Projected traffic192 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 N Marietta ST over Fk of Fishing Rvr built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1983.

What condition is N Marietta ST over Fk of Fishing 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 December 2023.

How much traffic does N Marietta ST over Fk of Fishing Rvr carry?

About 120 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is N Marietta ST over Fk of Fishing Rvr?

The structure is 48 ft (14.6 m) long with a longest span of 48 ft (14.6 m) and a deck 35 ft wide.

Who owns N Marietta ST over Fk of Fishing Rvr?

It is owned by the City or Municipal Highway Agency.