US Bridges

NW400 over Town CR

Poor

Henry County, Missouri · S 14 T 42 N R 26 W · Structure no. 19482

Built
1920
105 years old, rebuilt 1989
Condition
Poor
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
43 ft
1 main span
Daily traffic
60
2023 count
Owner
County
County Highway Agency

About this bridge

NW400 over Town CR is a steel stringer/multi-beam or girder carrying NW400 over Town CR in Henry County, Missouri. It was built in 1920 and reconstructed in 1989, 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 poor condition with a lowest component rating of 4 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.

It carries about 60 vehicles a day, roughly 10% of them trucks, projected to reach 84 by 2043. The structure is 43 ft (13.1 m) long and 20 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesNW400
CrossesTown CR
LocationS 14 T 42 N R 26 W
RouteCounty Highway 222
Coordinates38.42486, -93.76394
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.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2025
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 alignment8: Equal to present desirable criteria
Operating rating43.7 US tons
Inventory rating27.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length43 ft (13.1 m)
Longest span40 ft (12.2 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2023)
Projected traffic84 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$249,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was NW400 over Town CR built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1989.

What condition is NW400 over Town 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 February 2025.

How much traffic does NW400 over Town CR carry?

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

How long is NW400 over Town CR?

The structure is 43 ft (13.1 m) long with a longest span of 40 ft (12.2 m) and a deck 20 ft wide.

Who owns NW400 over Town CR?

It is owned by the County Highway Agency.