US Bridges

NW500 over Fields CR

Fair

Henry County, Missouri · S 9 T 42 N R 26 W · Structure no. 19279

Built
1920
105 years old, rebuilt 1989
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
51 ft
1 main span
Daily traffic
40
2023 count
Owner
County
County Highway Agency

About this bridge

NW500 over Fields CR is a steel stringer/multi-beam or girder carrying NW500 over Fields 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 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 40 vehicles a day, roughly 10% of them trucks, projected to reach 56 by 2043. The structure is 51 ft (15.5 m) long and 18 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesNW500
CrossesFields CR
LocationS 9 T 42 N R 26 W
RouteCounty Highway 216
CountyHenry County
StateMissouri
Coordinates38.44056, -93.80043
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.
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 evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.7 US tons
Inventory rating24.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length51 ft (15.5 m)
Longest span48 ft (14.6 m)
Deck width18 ft (5.5 m)
Roadway width18 ft (5.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2023)
Projected traffic56 by 2043
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was NW500 over Fields CR built?

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

What condition is NW500 over Fields 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 March 2023.

How much traffic does NW500 over Fields CR carry?

About 40 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is NW500 over Fields CR?

The structure is 51 ft (15.5 m) long with a longest span of 48 ft (14.6 m) and a deck 18 ft wide.

Who owns NW500 over Fields CR?

It is owned by the County Highway Agency.