US Bridges

County RD NE 1270 over Trib to Cooper CR

PoorClosed to traffic

St. Clair County, Missouri · S 6 T 39 N R 25 W · Structure no. 15517

Built
1930
95 years old
Condition
Poor
inspected December 2019
Type
Stringer/Multi-beam or Girder
Steel
Length
31 ft
1 main span
Daily traffic
25
2023 count
Owner
County
County Highway Agency

About this bridge

County RD NE 1270 over Trib to Cooper CR is a steel stringer/multi-beam or girder carrying County RD NE 1270 over Trib to Cooper CR in St. Clair County, Missouri. It was built in 1930, so it is 95 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 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. Its operating status is: closed to all traffic.

It carries about 25 vehicles a day, roughly 10% of them trucks, projected to reach 30 by 2043. The structure is 31 ft (9.4 m) long and 14 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesCounty RD NE 1270
CrossesTrib to Cooper CR
LocationS 6 T 39 N R 25 W
RouteCounty Highway 96
Coordinates38.20527, -93.71887
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
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionDecember 2019
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating0 US tons
Inventory rating0 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length31 ft (9.4 m)
Longest span30 ft (9.1 m)
Deck width14 ft (4.2 m)
Roadway width14 ft (4.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2023)
Projected traffic30 by 2043
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 byOther Local Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$289,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD NE 1270 over Trib to Cooper CR built?

It was built in 1930, making it 95 years old in 2025.

What condition is County RD NE 1270 over Trib to Cooper 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 December 2019.

How much traffic does County RD NE 1270 over Trib to Cooper CR carry?

About 25 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD NE 1270 over Trib to Cooper CR?

The structure is 31 ft (9.4 m) long with a longest span of 30 ft (9.1 m) and a deck 14 ft wide.

Who owns County RD NE 1270 over Trib to Cooper CR?

It is owned by the County Highway Agency and maintained by the Other Local Agency.