US Bridges

SH 14 Ml over Grizzly Creek

Good

Jackson County, Colorado · 8.5 MI NE of JCT US 40 · Structure no. C-11-J

Built
2005
20 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
58 ft
2 main spans
Daily traffic
1,300
2020 count
Owner
State
State Highway Agency

About this bridge

SH 14 Ml over Grizzly Creek is a concrete culvert carrying SH 14 Ml over Grizzly Creek in Jackson County, Colorado. It was built in 2005, so it is 20 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 1,300 vehicles a day, roughly 15% of them trucks, projected to reach 1,794 by 2040. The structure is 58 ft (17.7 m) long and 84 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesSH 14 Ml
CrossesGrizzly Creek
Location8.5 MI NE of JCT US 40
RouteState Highway 14A
Coordinates40.436, -106.4558
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 inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating69.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length58 ft (17.7 m)
Longest span28 ft (8.6 m)
Deck width84 ft (25.5 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2020)
Projected traffic1,794 by 2040
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 14 Ml over Grizzly Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is SH 14 Ml over Grizzly 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 September 2024.

How much traffic does SH 14 Ml over Grizzly Creek carry?

About 1,300 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is SH 14 Ml over Grizzly Creek?

The structure is 58 ft (17.7 m) long with a longest span of 28 ft (8.6 m) and a deck 84 ft wide.

Who owns SH 14 Ml over Grizzly Creek?

It is owned by the State Highway Agency.