US Bridges

SH 14 Ml over Box Elder Creek

Good

Larimer County, Colorado · 0.4 MI E of JCT I 25 · Structure no. B-17-DJ

Built
1985
40 years old
Condition
Good
inspected November 2023
Type
Culvert
Concrete
Length
65 ft
3 main spans
Daily traffic
19,000
2020 count
Owner
State
State Highway Agency

About this bridge

SH 14 Ml over Box Elder Creek is a concrete culvert carrying SH 14 Ml over Box Elder Creek in Larimer County, Colorado. It was built in 1985, so it is 40 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 19,000 vehicles a day, roughly 9% of them trucks, projected to reach 28,310 by 2040. The structure is 65 ft (19.9 m) long and 91 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSH 14 Ml
CrossesBox Elder Creek
Location0.4 MI E of JCT I 25
RouteState Highway 14C
Coordinates40.581, -104.99344
Functional classUrban Other Principal 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 inspectionNovember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating110.1 US tons
Inventory rating92.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length65 ft (19.9 m)
Longest span21 ft (6.5 m)
Deck width91 ft (27.7 m)
Roadway width89 ft (27.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,000 (2020)
Projected traffic28,310 by 2040
Trucks9%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

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 14 Ml over Box Elder Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is SH 14 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 November 2023.

How much traffic does SH 14 Ml over Box Elder Creek carry?

About 19,000 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is SH 14 Ml over Box Elder Creek?

The structure is 65 ft (19.9 m) long with a longest span of 21 ft (6.5 m) and a deck 91 ft wide.

Who owns SH 14 Ml over Box Elder Creek?

It is owned by the State Highway Agency.