US Bridges

Ridge RD-124 over Crane Pond CR

Good

Iron County, Missouri · S 20 T 32 N R 4 E · Structure no. 16558

Built
1940
85 years old
Condition
Good
inspected February 2025
Type
Slab
Concrete Continuous
Length
34 ft
3 main spans
Daily traffic
45
2023 count
Owner
County
County Highway Agency

About this bridge

Ridge RD-124 over Crane Pond CR is a concrete continuous slab carrying Ridge RD-124 over Crane Pond CR in Iron 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 45 vehicles a day, roughly 10% of them trucks, projected to reach 54 by 2043. The structure is 34 ft (10.4 m) long and 22 ft wide. If it were closed, the detour would be 23 mi (37 km).

CarriesRidge RD-124
CrossesCrane Pond CR
LocationS 20 T 32 N R 4 E
RouteCounty Highway 124
Coordinates37.4516, -90.634
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length34 ft (10.4 m)
Longest span10 ft (3 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2023)
Projected traffic54 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 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 Ridge RD-124 over Crane Pond CR built?

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

What condition is Ridge RD-124 over Crane Pond CR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2025.

How much traffic does Ridge RD-124 over Crane Pond CR carry?

About 45 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Ridge RD-124 over Crane Pond CR?

The structure is 34 ft (10.4 m) long with a longest span of 10 ft (3 m) and a deck 22 ft wide.

Who owns Ridge RD-124 over Crane Pond CR?

It is owned by the County Highway Agency.