US Bridges

W 385 ST over White Oak CR

Poor

Harrison County, Missouri · S 20 T 62 N R 29 W · Structure no. 25008

Built
1988
37 years old
Condition
Poor
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
45 ft
1 main span
Daily traffic
10
2024 count
Owner
County
County Highway Agency

About this bridge

W 385 ST over White Oak CR is a steel stringer/multi-beam or girder carrying W 385 ST over White Oak CR in Harrison County, Missouri. It was built in 1988, so it is 37 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.

It carries about 10 vehicles a day, roughly 10% of them trucks, projected to reach 12 by 2044. The structure is 45 ft (13.7 m) long and 16 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesW 385 ST
CrossesWhite Oak CR
LocationS 20 T 62 N R 29 W
RouteCounty Highway 598
Coordinates40.15811, -94.19452
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 protection3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionFebruary 2025
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.6 US tons
Inventory rating28.8 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadOther
Structure length45 ft (13.7 m)
Longest span44 ft (13.4 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2024)
Projected traffic12 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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$366,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was W 385 ST over White Oak CR built?

It was built in 1988, making it 37 years old in 2025.

What condition is W 385 ST over White Oak 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 W 385 ST over White Oak CR carry?

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

How long is W 385 ST over White Oak CR?

The structure is 45 ft (13.7 m) long with a longest span of 44 ft (13.4 m) and a deck 16 ft wide.

Who owns W 385 ST over White Oak CR?

It is owned by the County Highway Agency.