US Bridges

Caldwell ST over Br of Salt Rvr

Fair

Monroe County, Missouri · S 11 T 54 N R 10 W · Structure no. 29370

Built
2002
23 years old
Condition
Fair
inspected June 2024
Type
Slab
Concrete
Length
32 ft
1 main span
Daily traffic
250
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Caldwell ST over Br of Salt Rvr is a concrete slab carrying Caldwell ST over Br of Salt Rvr in Monroe County, Missouri. It was built in 2002, so it is 23 years old, younger 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 6 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 250 vehicles a day, roughly 10% of them trucks, projected to reach 313 by 2043. The structure is 32 ft (9.8 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCaldwell ST
CrossesBr of Salt Rvr
LocationS 11 T 54 N R 10 W
RouteCity Street 0
CountyMonroe County
StateMissouri
Coordinates39.48139, -91.99661
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 rating61.5 US tons
Inventory rating36.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length32 ft (9.8 m)
Longest span29 ft (8.8 m)
Deck width37 ft (11.3 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2023)
Projected traffic313 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Caldwell ST over Br of Salt Rvr built?

It was built in 2002, making it 23 years old in 2025.

What condition is Caldwell ST over Br of Salt Rvr 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 June 2024.

How much traffic does Caldwell ST over Br of Salt Rvr carry?

About 250 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Caldwell ST over Br of Salt Rvr?

The structure is 32 ft (9.8 m) long with a longest span of 29 ft (8.8 m) and a deck 37 ft wide.

Who owns Caldwell ST over Br of Salt Rvr?

It is owned by the City or Municipal Highway Agency.