US Bridges

Dorsett Hill RD over Br New Chan Grand

Fair

Cass County, Missouri · S 23 T 43 N R 32 W · Structure no. 24684

Built
1955
70 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
45
2024 count
Owner
County
County Highway Agency

About this bridge

Dorsett Hill RD over Br New Chan Grand is a concrete culvert carrying Dorsett Hill RD over Br New Chan Grand in Cass County, Missouri. It was built in 1955, so it is 70 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 45 vehicles a day, roughly 5% of them trucks, projected to reach 72 by 2044. The structure is 22 ft (6.7 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesDorsett Hill RD
CrossesBr New Chan Grand
LocationS 23 T 43 N R 32 W
RouteCounty Highway 531
CountyCass County
StateMissouri
Coordinates38.5129, -94.42672
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length22 ft (6.7 m)
Longest span11 ft (3.4 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2024)
Projected traffic72 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Dorsett Hill RD over Br New Chan Grand built?

It was built in 1955, making it 70 years old in 2025.

What condition is Dorsett Hill RD over Br New Chan Grand 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 April 2023.

How much traffic does Dorsett Hill RD over Br New Chan Grand carry?

About 45 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Dorsett Hill RD over Br New Chan Grand?

The structure is 22 ft (6.7 m) long with a longest span of 11 ft (3.4 m) and a deck 26 ft wide.

Who owns Dorsett Hill RD over Br New Chan Grand?

It is owned by the County Highway Agency.