US Bridges

Pvt Unknown Pvt S over Drain Dtch

Fair

Callaway County, Missouri · S 17 T 44 N R 10 W · Structure no. 9397

Built
1940
85 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
26 ft
1 main span
Daily traffic
4
2024 count
Owner
State
State Highway Agency

About this bridge

Pvt Unknown Pvt S over Drain Dtch is a steel stringer/multi-beam or girder carrying Pvt Unknown Pvt S over Drain Dtch in Callaway County, Missouri. It was built in 1940, so it is 85 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 5 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 4 vehicles a day, roughly 10% of them trucks, projected to reach 6 by 2044. The structure is 26 ft (7.9 m) long and 16 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesPvt Unknown Pvt S
CrossesDrain Dtch
LocationS 17 T 44 N R 10 W
Coordinates38.58116, -92.07952
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
Deck8 Very GoodNo problems noted.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating104.2 US tons
Inventory rating62.5 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadOther
Structure length26 ft (7.9 m)
Longest span26 ft (7.8 m)
Deck width16 ft (4.8 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4 (2024)
Projected traffic6 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Pvt Unknown Pvt S over Drain Dtch built?

It was built in 1940, making it 85 years old in 2025.

What condition is Pvt Unknown Pvt S over Drain Dtch 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 October 2024.

How much traffic does Pvt Unknown Pvt S over Drain Dtch carry?

About 4 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Pvt Unknown Pvt S over Drain Dtch?

The structure is 26 ft (7.9 m) long with a longest span of 26 ft (7.8 m) and a deck 16 ft wide.

Who owns Pvt Unknown Pvt S over Drain Dtch?

It is owned by the State Highway Agency.