US Bridges

Elmont Road over Little Boone Crk

Good

Franklin County, Missouri · S 21 T 41 N R 3 W · Structure no. 36808

Built
2022
3 years old
Condition
Good
inspected July 2023
Type
Tee Beam
Prestressed Concrete
Length
82 ft
1 main span
Daily traffic
200
2023 count
Owner
County
County Highway Agency

About this bridge

Elmont Road over Little Boone Crk is a prestressed concrete tee beam carrying Elmont Road over Little Boone Crk in Franklin County, Missouri. It was built in 2022, so it is 3 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.

It carries about 200 vehicles a day, roughly 10% of them trucks, projected to reach 360 by 2043. The structure is 82 ft (25.1 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesElmont Road
CrossesLittle Boone Crk
LocationS 21 T 41 N R 3 W
RouteCounty Highway 352
CountyFranklin County
StateMissouri
Coordinates38.2781, -91.2689
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 protection9 ExcellentNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no 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 rating95.2 US tons
Inventory rating73.4 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length82 ft (25.1 m)
Longest span80 ft (24.4 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2023)
Projected traffic360 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Elmont Road over Little Boone Crk built?

It was built in 2022, making it 3 years old in 2025.

What condition is Elmont Road over Little Boone Crk 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 July 2023.

How much traffic does Elmont Road over Little Boone Crk carry?

About 200 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Elmont Road over Little Boone Crk?

The structure is 82 ft (25.1 m) long with a longest span of 80 ft (24.4 m) and a deck 31 ft wide.

Who owns Elmont Road over Little Boone Crk?

It is owned by the County Highway Agency.