US Bridges

SH 52 Ml over Box Elder Creek

Good

Weld County, Colorado · 2.7 MI E of JCT I-76 · Structure no. D-18-BD

Built
1965
60 years old
Condition
Good
inspected March 2025
Type
Culvert
Concrete
Length
23 ft
1 main span
Daily traffic
2,900
2020 count
Owner
State
State Highway Agency

About this bridge

SH 52 Ml over Box Elder Creek is a concrete culvert carrying SH 52 Ml over Box Elder Creek in Weld County, Colorado. It was built in 1965, so it is 60 years old, older 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 2,900 vehicles a day, roughly 14% of them trucks, projected to reach 4,234 by 2040. The structure is 23 ft (7 m) long and 52 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSH 52 Ml
CrossesBox Elder Creek
Location2.7 MI E of JCT I-76
RouteState Highway 52A
Coordinates40.07316, -104.59763
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length23 ft (7 m)
Longest span23 ft (7 m)
Deck width52 ft (15.8 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,900 (2020)
Projected traffic4,234 by 2040
Trucks14%
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

OwnerState Highway Agency
Maintained byState 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 SH 52 Ml over Box Elder Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is SH 52 Ml 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 March 2025.

How much traffic does SH 52 Ml over Box Elder Creek carry?

About 2,900 vehicles per day (2020 count), of which roughly 14% are trucks.

How long is SH 52 Ml over Box Elder Creek?

The structure is 23 ft (7 m) long with a longest span of 23 ft (7 m) and a deck 52 ft wide.

Who owns SH 52 Ml over Box Elder Creek?

It is owned by the State Highway Agency.