US Bridges

Mo 179 S over Grays CR

Fair

Cole County, Missouri · S 27 T 45 N R 12 W · Structure no. 406

Built
1959
66 years old, rebuilt 1988
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
172 ft
3 main spans
Daily traffic
3,941
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 179 S over Grays CR is a steel continuous stringer/multi-beam or girder carrying Mo 179 S over Grays CR in Cole County, Missouri. It was built in 1959 and reconstructed in 1988, so it is 66 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 3,941 vehicles a day, roughly 3% of them trucks, projected to reach 6,306 by 2044. The structure is 172 ft (52.4 m) long and 27 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesMo 179 S
CrossesGrays CR
LocationS 27 T 45 N R 12 W
RouteState Highway 179
CountyCole County
StateMissouri
Coordinates38.61311, -92.22635
Functional classUrban 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating34.7 US tons
Inventory rating18.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length172 ft (52.4 m)
Longest span65 ft (19.8 m)
Deck width27 ft (8.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,941 (2024)
Projected traffic6,306 by 2044
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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$2 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 179 S over Grays CR built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1988.

What condition is Mo 179 S over Grays 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 July 2024.

How much traffic does Mo 179 S over Grays CR carry?

About 3,941 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Mo 179 S over Grays CR?

The structure is 172 ft (52.4 m) long with a longest span of 65 ft (19.8 m) and a deck 27 ft wide.

Who owns Mo 179 S over Grays CR?

It is owned by the State Highway Agency.