US Bridges

SH 17 Ml over LA Garita Creek

Good

Saguache County, Colorado · 9.2 MI N of SH112 Ml · Structure no. M-13-E

Built
1947
78 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
1,400
2020 count
Owner
State
State Highway Agency

About this bridge

SH 17 Ml over LA Garita Creek is a concrete culvert carrying SH 17 Ml over LA Garita Creek in Saguache County, Colorado. It was built in 1947, so it is 78 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 1,400 vehicles a day, roughly 10% of them trucks, projected to reach 1,708 by 2040. The structure is 32 ft (9.8 m) long and 36 ft wide. If it were closed, the detour would be 34.8 mi (56 km).

CarriesSH 17 Ml
CrossesLA Garita Creek
Location9.2 MI N of SH112 Ml
RouteState Highway 17B
Coordinates37.88394, -105.89559
Functional classRural Principal Arterial - Other

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 inspectionOctober 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.1 US tons
Inventory rating39 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width36 ft (11 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,400 (2020)
Projected traffic1,708 by 2040
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.8 mi (56 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 17 Ml over LA Garita Creek built?

It was built in 1947, making it 78 years old in 2025.

What condition is SH 17 Ml over LA Garita 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 October 2023.

How much traffic does SH 17 Ml over LA Garita Creek carry?

About 1,400 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is SH 17 Ml over LA Garita Creek?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m) and a deck 36 ft wide.

Who owns SH 17 Ml over LA Garita Creek?

It is owned by the State Highway Agency.