US Bridges

NW 4502 over Br of Mulberry CR

Fair

Bates County, Missouri · S 9 T 40 N R 33 W · Structure no. 34322

Built
2011
14 years old
Condition
Fair
inspected January 2025
Type
Slab
Concrete Continuous
Length
30 ft
2 main spans
Daily traffic
60
2023 count
Owner
County
County Highway Agency

About this bridge

NW 4502 over Br of Mulberry CR is a concrete continuous slab carrying NW 4502 over Br of Mulberry CR in Bates County, Missouri. It was built in 2011, so it is 14 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 60 vehicles a day, roughly 10% of them trucks, projected to reach 78 by 2043. The structure is 30 ft (9 m) long and 25 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNW 4502
CrossesBr of Mulberry CR
LocationS 9 T 40 N R 33 W
RouteCounty Highway 303
CountyBates County
StateMissouri
Coordinates38.29062, -94.56876
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.6 US tons
Inventory rating32.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length30 ft (9 m)
Longest span14 ft (4.3 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2023)
Projected traffic78 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 NW 4502 over Br of Mulberry CR built?

It was built in 2011, making it 14 years old in 2025.

What condition is NW 4502 over Br of Mulberry 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 January 2025.

How much traffic does NW 4502 over Br of Mulberry CR carry?

About 60 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is NW 4502 over Br of Mulberry CR?

The structure is 30 ft (9 m) long with a longest span of 14 ft (4.3 m) and a deck 25 ft wide.

Who owns NW 4502 over Br of Mulberry CR?

It is owned by the County Highway Agency.