US Bridges

S Thorngrove RD over E Br S Grand Rvr

GoodPosted for load

Cass County, Missouri · S 12 T 45 N R 32 W · Structure no. 36593

Built
2020
5 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
100 ft
1 main span
Daily traffic
40
2024 count
Owner
County
County Highway Agency

About this bridge

S Thorngrove RD over E Br S Grand Rvr is a steel stringer/multi-beam or girder carrying S Thorngrove RD over E Br S Grand Rvr in Cass County, Missouri. It was built in 2020, so it is 5 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 40 vehicles a day, roughly 5% of them trucks, projected to reach 64 by 2044. The structure is 100 ft (30.6 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesS Thorngrove RD
CrossesE Br S Grand Rvr
LocationS 12 T 45 N R 32 W
RouteCounty Highway 230
CountyCass County
StateMissouri
Coordinates38.72795, -94.41858
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.5 US tons
Inventory rating49.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length100 ft (30.6 m)
Longest span97 ft (29.6 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2024)
Projected traffic64 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 S Thorngrove RD over E Br S Grand Rvr built?

It was built in 2020, making it 5 years old in 2025.

What condition is S Thorngrove RD over E Br S Grand Rvr 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 April 2023.

How much traffic does S Thorngrove RD over E Br S Grand Rvr carry?

About 40 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is S Thorngrove RD over E Br S Grand Rvr?

The structure is 100 ft (30.6 m) long with a longest span of 97 ft (29.6 m) and a deck 25 ft wide.

Who owns S Thorngrove RD over E Br S Grand Rvr?

It is owned by the County Highway Agency.