US Bridges

Rt N S over Grassy CR

Good

Lewis County, Missouri · S 19 T 60 N R 7 W · Structure no. 7264

Built
1961
64 years old, rebuilt 2014
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
164 ft
3 main spans
Daily traffic
416
2024 count
Owner
State
State Highway Agency

About this bridge

Rt N S over Grassy CR is a steel continuous stringer/multi-beam or girder carrying Rt N S over Grassy CR in Lewis County, Missouri. It was built in 1961 and reconstructed in 2014, so it is 64 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 416 vehicles a day, roughly 9% of them trucks, projected to reach 603 by 2044. The structure is 164 ft (50 m) long and 25 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesRt N S
CrossesGrassy CR
LocationS 19 T 60 N R 7 W
RouteState Highway 0N
Coordinates39.98594, -91.72085
Functional classRural Minor Collector

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 protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating41.7 US tons
Inventory rating24.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length164 ft (50 m)
Longest span60 ft (18.3 m)
Deck width25 ft (7.5 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic416 (2024)
Projected traffic603 by 2044
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Rt N S over Grassy CR built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2014.

What condition is Rt N S over Grassy 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 October 2024.

How much traffic does Rt N S over Grassy CR carry?

About 416 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is Rt N S over Grassy CR?

The structure is 164 ft (50 m) long with a longest span of 60 ft (18.3 m) and a deck 25 ft wide.

Who owns Rt N S over Grassy CR?

It is owned by the State Highway Agency.