US Bridges

SW Houghton RD over Tub CR

PoorPosted for load

Caldwell County, Missouri · S 31 T 56 N R 28 W · Structure no. 31759

Built
2006
19 years old
Condition
Poor
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
55 ft
2 main spans
Daily traffic
5
2024 count
Owner
County
County Highway Agency

About this bridge

SW Houghton RD over Tub CR is a steel continuous stringer/multi-beam or girder carrying SW Houghton RD over Tub CR in Caldwell County, Missouri. It was built in 2006, so it is 19 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 5 vehicles a day, roughly 10% of them trucks, projected to reach 6 by 2044. The structure is 55 ft (16.8 m) long and 12 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesSW Houghton RD
CrossesTub CR
LocationS 31 T 56 N R 28 W
RouteCounty Highway 351
Coordinates39.62381, -94.08555
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating26.8 US tons
Inventory rating15.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length55 ft (16.8 m)
Longest span40 ft (12.3 m)
Deck width12 ft (3.6 m)
Roadway width11 ft (3.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (2024)
Projected traffic6 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$438,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SW Houghton RD over Tub CR built?

It was built in 2006, making it 19 years old in 2025.

What condition is SW Houghton RD over Tub CR in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2024.

How much traffic does SW Houghton RD over Tub CR carry?

About 5 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is SW Houghton RD over Tub CR?

The structure is 55 ft (16.8 m) long with a longest span of 40 ft (12.3 m) and a deck 12 ft wide.

Who owns SW Houghton RD over Tub CR?

It is owned by the County Highway Agency.