US Bridges

Mo 123 S over Creek

Fair

Polk County, Missouri · S 16 T 34 N R 24 W · Structure no. 4973

Built
1926
99 years old
Condition
Fair
inspected November 2023
Type
Slab
Concrete
Length
42 ft
2 main spans
Daily traffic
749
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 123 S over Creek is a concrete slab carrying Mo 123 S over Creek in Polk County, Missouri. It was built in 1926, so it is 99 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.

It carries about 749 vehicles a day, roughly 10% of them trucks, projected to reach 1,198 by 2044. The structure is 42 ft (12.8 m) long and 24 ft wide. If it were closed, the detour would be 21.1 mi (34 km).

CarriesMo 123 S
CrossesCreek
LocationS 16 T 34 N R 24 W
RouteState Highway 123
Coordinates37.68311, -93.57445
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.8 US tons
Inventory rating17.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length42 ft (12.8 m)
Longest span21 ft (6.4 m)
Deck width24 ft (7.2 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic749 (2024)
Projected traffic1,198 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.1 mi (34 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$574,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 123 S over Creek built?

It was built in 1926, making it 99 years old in 2025.

What condition is Mo 123 S over Creek 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 Creek carry?

About 749 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Mo 123 S over Creek?

The structure is 42 ft (12.8 m) long with a longest span of 21 ft (6.4 m) and a deck 24 ft wide.

Who owns Mo 123 S over Creek?

It is owned by the State Highway Agency.