US Bridges

NE 40th RD over Railroad Drain Dtc

Fair

Barton County, Missouri · S 1 T 32 N R 31 W · Structure no. 17001

Built
1950
75 years old, rebuilt 1981
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
48 ft
4 main spans
Daily traffic
35
2023 count
Owner
County
County Highway Agency

About this bridge

NE 40th RD over Railroad Drain Dtc is a wood or timber stringer/multi-beam or girder carrying NE 40th RD over Railroad Drain Dtc in Barton County, Missouri. It was built in 1950 and reconstructed in 1981, so it is 75 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 35 vehicles a day, roughly 10% of them trucks, projected to reach 49 by 2043. The structure is 48 ft (14.6 m) long and 20 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesNE 40th RD
CrossesRailroad Drain Dtc
LocationS 1 T 32 N R 31 W
RouteCounty Highway 139
CountyBarton County
StateMissouri
Coordinates37.55891, -94.27639
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating32.7 US tons
Inventory rating15.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans4
Design loadOther
Structure length48 ft (14.6 m)
Longest span13 ft (4 m)
Deck width20 ft (6.2 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2023)
Projected traffic49 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$260,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was NE 40th RD over Railroad Drain Dtc built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1981.

What condition is NE 40th RD over Railroad Drain Dtc 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 2023.

How much traffic does NE 40th RD over Railroad Drain Dtc carry?

About 35 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is NE 40th RD over Railroad Drain Dtc?

The structure is 48 ft (14.6 m) long with a longest span of 13 ft (4 m) and a deck 20 ft wide.

Who owns NE 40th RD over Railroad Drain Dtc?

It is owned by the County Highway Agency.