US Bridges

Mo 18 E over Nabbs Br

Fair

Bates County, Missouri · S 5 T 41 N R 32 W · Structure no. 9149

Built
1935
90 years old
Condition
Fair
inspected March 2024
Type
Culvert
Concrete Continuous
Length
20 ft
2 main spans
Daily traffic
406
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 18 E over Nabbs Br is a concrete continuous culvert carrying Mo 18 E over Nabbs Br in Bates County, Missouri. It was built in 1935, so it is 90 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.

It carries about 406 vehicles a day, roughly 11% of them trucks, projected to reach 548 by 2044. The structure is 20 ft (6.2 m) long and 28 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesMo 18 E
CrossesNabbs Br
LocationS 5 T 41 N R 32 W
RouteState Highway 18
CountyBates County
StateMissouri
Coordinates38.39739, -94.49109
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.7 US tons
Inventory rating25.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 10
Structure length20 ft (6.2 m)
Longest span10 ft (3 m)
Deck width28 ft (8.4 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic406 (2024)
Projected traffic548 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemNo

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 Mo 18 E over Nabbs Br built?

It was built in 1935, making it 90 years old in 2025.

What condition is Mo 18 E over Nabbs Br 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 March 2024.

How much traffic does Mo 18 E over Nabbs Br carry?

About 406 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is Mo 18 E over Nabbs Br?

The structure is 20 ft (6.2 m) long with a longest span of 10 ft (3 m) and a deck 28 ft wide.

Who owns Mo 18 E over Nabbs Br?

It is owned by the State Highway Agency.