US Bridges

SH 74 Ml over Cold Spring Gulch

Good

Jefferson County, Colorado · 2 MI SE of Kittredge · Structure no. F-15-AC

Built
1999
26 years old
Condition
Good
inspected August 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
218 ft
3 main spans
Daily traffic
3,300
2020 count
Owner
State
State Highway Agency

About this bridge

SH 74 Ml over Cold Spring Gulch is a prestressed concrete continuous box beam or girders - single or spread carrying SH 74 Ml over Cold Spring Gulch in Jefferson County, Colorado. It was built in 1999, so it is 26 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 3,300 vehicles a day, roughly 2% of them trucks, projected to reach 3,399 by 2040. The structure is 218 ft (66.3 m) long and 42 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSH 74 Ml
CrossesCold Spring Gulch
Location2 MI SE of Kittredge
RouteState Highway 74A
Coordinates39.66667, -105.27577
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating70.8 US tons
Inventory rating42.4 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length218 ft (66.3 m)
Longest span73 ft (22.1 m)
Deck width42 ft (12.7 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,300 (2020)
Projected traffic3,399 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 74 Ml over Cold Spring Gulch built?

It was built in 1999, making it 26 years old in 2025.

What condition is SH 74 Ml over Cold Spring Gulch 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 August 2023.

How much traffic does SH 74 Ml over Cold Spring Gulch carry?

About 3,300 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is SH 74 Ml over Cold Spring Gulch?

The structure is 218 ft (66.3 m) long with a longest span of 73 ft (22.1 m) and a deck 42 ft wide.

Who owns SH 74 Ml over Cold Spring Gulch?

It is owned by the State Highway Agency.