US Bridges

NW 161 over Fields CR

Good

Henry County, Missouri · S 3 T 42 N R 26 W · Structure no. 29745

Built
2003
22 years old
Condition
Good
inspected March 2023
Type
Tee Beam
Prestressed Concrete Continuous
Length
130 ft
3 main spans
Daily traffic
10
2023 count
Owner
County
County Highway Agency

About this bridge

NW 161 over Fields CR is a prestressed concrete continuous tee beam carrying NW 161 over Fields CR in Henry County, Missouri. It was built in 2003, so it is 22 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10 vehicles a day, roughly 25% of them trucks, projected to reach 14 by 2043. The structure is 130 ft (39.6 m) long and 25 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesNW 161
CrossesFields CR
LocationS 3 T 42 N R 26 W
RouteCounty Highway 217
Coordinates38.45423, -93.7815
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
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 evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating62.5 US tons
Inventory rating36.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length130 ft (39.6 m)
Longest span50 ft (15.2 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2023)
Projected traffic14 by 2043
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 NW 161 over Fields CR built?

It was built in 2003, making it 22 years old in 2025.

What condition is NW 161 over Fields CR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.

How much traffic does NW 161 over Fields CR carry?

About 10 vehicles per day (2023 count), of which roughly 25% are trucks.

How long is NW 161 over Fields CR?

The structure is 130 ft (39.6 m) long with a longest span of 50 ft (15.2 m) and a deck 25 ft wide.

Who owns NW 161 over Fields CR?

It is owned by the County Highway Agency.