US Bridges

Crd 409 over Trib of Grand Rvr

Good

Livingston County, Missouri · S 9 T 57 N R 25 W · Structure no. 36306

Built
2020
5 years old
Condition
Good
inspected January 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
59 ft
1 main span
Daily traffic
15
2024 count
Owner
County
County Highway Agency

About this bridge

Crd 409 over Trib of Grand Rvr is a prestressed concrete box beam or girders - multiple carrying Crd 409 over Trib of Grand Rvr in Livingston 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 15 vehicles a day, roughly 10% of them trucks, projected to reach 17 by 2044. The structure is 59 ft (18 m) long and 24 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCrd 409
CrossesTrib of Grand Rvr
LocationS 9 T 57 N R 25 W
RouteCounty Highway 271
Coordinates39.76118, -93.71779
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.4 US tons
Inventory rating53.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length59 ft (18 m)
Longest span56 ft (17.2 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2024)
Projected traffic17 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Crd 409 over Trib of Grand Rvr built?

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

What condition is Crd 409 over Trib of 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 January 2025.

How much traffic does Crd 409 over Trib of Grand Rvr carry?

About 15 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Crd 409 over Trib of Grand Rvr?

The structure is 59 ft (18 m) long with a longest span of 56 ft (17.2 m) and a deck 24 ft wide.

Who owns Crd 409 over Trib of Grand Rvr?

It is owned by the County Highway Agency.