US Bridges

Martin Road over Campbell Branch

Good

Lincoln County, Missouri · S 7 T 48 N R 2 E · Structure no. 36672

Built
2021
4 years old
Condition
Good
inspected April 2024
Type
Box Beam or Girders - Multiple
Concrete
Length
24 ft
1 main span
Daily traffic
20
2023 count
Owner
County
County Highway Agency

About this bridge

Martin Road over Campbell Branch is a concrete box beam or girders - multiple carrying Martin Road over Campbell Branch in Lincoln County, Missouri. It was built in 2021, so it is 4 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 20 vehicles a day, roughly 10% of them trucks, projected to reach 32 by 2043. The structure is 24 ft (7.3 m) long and 23 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesMartin Road
CrossesCampbell Branch
LocationS 7 T 48 N R 2 E
RouteCounty Highway 315
Coordinates38.93803, -90.83056
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 protection9 ExcellentNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.4 US tons
Inventory rating43.7 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span22 ft (6.6 m)
Deck width23 ft (7 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2023)
Projected traffic32 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 Martin Road over Campbell Branch built?

It was built in 2021, making it 4 years old in 2025.

What condition is Martin Road over Campbell Branch 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 2024.

How much traffic does Martin Road over Campbell Branch carry?

About 20 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Martin Road over Campbell Branch?

The structure is 24 ft (7.3 m) long with a longest span of 22 ft (6.6 m) and a deck 23 ft wide.

Who owns Martin Road over Campbell Branch?

It is owned by the County Highway Agency.