US Bridges

Horizon ST over Camp Br

Good

Macon County, Missouri · S 28 T 58 N R 15 W · Structure no. 28710

Built
2001
24 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
45 ft
1 main span
Daily traffic
35
2024 count
Owner
County
County Highway Agency

About this bridge

Horizon ST over Camp Br is a steel stringer/multi-beam or girder carrying Horizon ST over Camp Br in Macon County, Missouri. It was built in 2001, so it is 24 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 35 vehicles a day, roughly 10% of them trucks, projected to reach 39 by 2044. The structure is 45 ft (13.7 m) long and 22 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesHorizon ST
CrossesCamp Br
LocationS 28 T 58 N R 15 W
RouteCounty Highway 299
Coordinates39.80499, -92.58851
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating59.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length45 ft (13.7 m)
Longest span44 ft (13.4 m)
Deck width22 ft (6.7 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2024)
Projected traffic39 by 2044
Trucks10%
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 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 Horizon ST over Camp Br built?

It was built in 2001, making it 24 years old in 2025.

What condition is Horizon ST over Camp Br 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 2024.

How much traffic does Horizon ST over Camp Br carry?

About 35 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Horizon ST over Camp Br?

The structure is 45 ft (13.7 m) long with a longest span of 44 ft (13.4 m) and a deck 22 ft wide.

Who owns Horizon ST over Camp Br?

It is owned by the County Highway Agency.