US Bridges

Mo 123 S over Bear CR

Fair

Polk County, Missouri · S 9 T 33 N R 24 W · Structure no. 11963

Built
1998
27 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
178 ft
3 main spans
Daily traffic
676
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 123 S over Bear CR is a steel continuous stringer/multi-beam or girder carrying Mo 123 S over Bear CR in Polk County, Missouri. It was built in 1998, so it is 27 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 676 vehicles a day, roughly 12% of them trucks, projected to reach 1,082 by 2044. The structure is 178 ft (54.3 m) long and 39 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesMo 123 S
CrossesBear CR
LocationS 9 T 33 N R 24 W
RouteState Highway 123
Coordinates37.61019, -93.56374
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.3 US tons
Inventory rating49.6 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length178 ft (54.3 m)
Longest span71 ft (21.6 m)
Deck width39 ft (11.8 m)
Roadway width37 ft (11.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic676 (2024)
Projected traffic1,082 by 2044
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Mo 123 S over Bear CR built?

It was built in 1998, making it 27 years old in 2025.

What condition is Mo 123 S over Bear 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 November 2023.

How much traffic does Mo 123 S over Bear CR carry?

About 676 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is Mo 123 S over Bear CR?

The structure is 178 ft (54.3 m) long with a longest span of 71 ft (21.6 m) and a deck 39 ft wide.

Who owns Mo 123 S over Bear CR?

It is owned by the State Highway Agency.