US Bridges

NW Barwick DR over Mill CR

Poor

Caldwell County, Missouri · S 29 T 57 N R 28 W · Structure no. 14944

Built
1939
86 years old
Condition
Poor
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
34 ft
1 main span
Daily traffic
20
2024 count
Owner
County
County Highway Agency

About this bridge

NW Barwick DR over Mill CR is a steel stringer/multi-beam or girder carrying NW Barwick DR over Mill CR in Caldwell County, Missouri. It was built in 1939, so it is 86 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 20 vehicles a day, roughly 10% of them trucks, projected to reach 23 by 2044. The structure is 34 ft (10.4 m) long and 16 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNW Barwick DR
CrossesMill CR
LocationS 29 T 57 N R 28 W
RouteCounty Highway 80
CountyCaldwell County
StateMissouri
Coordinates39.71314, -94.06638
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.6 US tons
Inventory rating27.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 10
Structure length34 ft (10.4 m)
Longest span32 ft (9.9 m)
Deck width16 ft (5 m)
Roadway width16 ft (5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2024)
Projected traffic23 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$211,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was NW Barwick DR over Mill CR built?

It was built in 1939, making it 86 years old in 2025.

What condition is NW Barwick DR over Mill 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 November 2023.

How much traffic does NW Barwick DR over Mill CR carry?

About 20 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is NW Barwick DR over Mill CR?

The structure is 34 ft (10.4 m) long with a longest span of 32 ft (9.9 m) and a deck 16 ft wide.

Who owns NW Barwick DR over Mill CR?

It is owned by the County Highway Agency.