US Bridges

County RD NW 726 over Reid CR

FairPosted for load

St. Clair County, Missouri · S 21 T 39 N R 27 W · Structure no. 17305

Built
1925
100 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
30 ft
2 main spans
Daily traffic
10
2023 count
Owner
County
County Highway Agency

About this bridge

County RD NW 726 over Reid CR is a steel stringer/multi-beam or girder carrying County RD NW 726 over Reid CR in St. Clair County, Missouri. It was built in 1925, so it is 100 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. Its operating status is: posted for load restriction.

It carries about 10 vehicles a day, roughly 10% of them trucks, projected to reach 12 by 2043. The structure is 30 ft (9.1 m) long and 12 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesCounty RD NW 726
CrossesReid CR
LocationS 21 T 39 N R 27 W
RouteCounty Highway 148
CountySt. Clair County
StateMissouri
Coordinates38.13132, -93.89048
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 alignment6: Equal to present minimum criteria
Operating rating35.7 US tons
Inventory rating21.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadOther
Structure length30 ft (9.1 m)
Longest span14 ft (4.3 m)
Deck width12 ft (3.8 m)
Roadway width12 ft (3.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2023)
Projected traffic12 by 2043
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD NW 726 over Reid CR built?

It was built in 1925, making it 100 years old in 2025.

What condition is County RD NW 726 over Reid CR 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 December 2023.

How much traffic does County RD NW 726 over Reid CR carry?

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

How long is County RD NW 726 over Reid CR?

The structure is 30 ft (9.1 m) long with a longest span of 14 ft (4.3 m) and a deck 12 ft wide.

Who owns County RD NW 726 over Reid CR?

It is owned by the County Highway Agency.