US Bridges

County Road 49 over Box Elder Creek

Good

Weld County, Colorado · 1.3 MI N of CR 22 · Structure no. WEL049.0-024.0A

Built
2017
8 years old
Condition
Good
inspected February 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
185 ft
4 main spans
Daily traffic
4,747
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 49 over Box Elder Creek is a prestressed concrete box beam or girders - multiple carrying County Road 49 over Box Elder Creek in Weld County, Colorado. It was built in 2017, so it is 8 years old, younger than the Colorado average of 42.2 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 4,747 vehicles a day, roughly 38% of them trucks, projected to reach 6,741 by 2042. The structure is 185 ft (56.3 m) long and 83 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCounty Road 49
CrossesBox Elder Creek
Location1.3 MI N of CR 22
RouteCounty Highway 0
Coordinates40.1639, -104.60289
Functional classRural Major Collector

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.1 US tons
Inventory rating42.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length185 ft (56.3 m)
Longest span42 ft (12.9 m)
Deck width83 ft (25.3 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,747 (2022)
Projected traffic6,741 by 2042
Trucks38%
Lanes on structure5
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was County Road 49 over Box Elder Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is County Road 49 over Box Elder Creek 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 February 2024.

How much traffic does County Road 49 over Box Elder Creek carry?

About 4,747 vehicles per day (2022 count), of which roughly 38% are trucks.

How long is County Road 49 over Box Elder Creek?

The structure is 185 ft (56.3 m) long with a longest span of 42 ft (12.9 m) and a deck 83 ft wide.

Who owns County Road 49 over Box Elder Creek?

It is owned by the County Highway Agency.