US Bridges

County RD 317 over W Sulphur CR

PoorPosted for load

Pike County, Missouri · S 1818 T 52 N R 3 W · Structure no. 18137

Built
1900
125 years old
Condition
Poor
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
65 ft
2 main spans
Daily traffic
5
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 317 over W Sulphur CR is a steel stringer/multi-beam or girder carrying County RD 317 over W Sulphur CR in Pike County, Missouri. It was built in 1900, so it is 125 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. Its operating status is: posted for load restriction.

It carries about 5 vehicles a day, roughly 10% of them trucks, projected to reach 6 by 2043. The structure is 65 ft (19.8 m) long and 12 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesCounty RD 317
CrossesW Sulphur CR
LocationS 1818 T 52 N R 3 W
RouteCounty Highway 174
Coordinates39.25244, -91.19281
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.7 US tons
Inventory rating19.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadOther
Structure length65 ft (19.8 m)
Longest span32 ft (9.8 m)
Deck width12 ft (3.7 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (2023)
Projected traffic6 by 2043
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$494,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 317 over W Sulphur CR built?

It was built in 1900, making it 125 years old in 2025.

What condition is County RD 317 over W Sulphur 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 July 2024.

How much traffic does County RD 317 over W Sulphur CR carry?

About 5 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD 317 over W Sulphur CR?

The structure is 65 ft (19.8 m) long with a longest span of 32 ft (9.8 m) and a deck 12 ft wide.

Who owns County RD 317 over W Sulphur CR?

It is owned by the County Highway Agency.