US Bridges

SH 368 Ml over Empire Irrigation Canal

Good

Alamosa County, Colorado · 2.3 MI E of JCT SH 371 · Structure no. O-13-T

Built
1955
70 years old
Condition
Good
inspected February 2025
Type
Tee Beam
Concrete
Length
43 ft
1 main span
Daily traffic
230
2020 count
Owner
State
State Highway Agency

About this bridge

SH 368 Ml over Empire Irrigation Canal is a concrete tee beam carrying SH 368 Ml over Empire Irrigation Canal in Alamosa County, Colorado. It was built in 1955, so it is 70 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 230 vehicles a day, roughly 8% of them trucks, projected to reach 327 by 2040. The structure is 43 ft (13.1 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSH 368 Ml
CrossesEmpire Irrigation Canal
Location2.3 MI E of JCT SH 371
RouteState Highway 368A
Coordinates37.37112, -105.99682
Functional classRural Major Collector

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 inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating50.7 US tons
Inventory rating30.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckOther
Main spans1
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span40 ft (12.2 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic230 (2020)
Projected traffic327 by 2040
Trucks8%
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 368 Ml over Empire Irrigation Canal built?

It was built in 1955, making it 70 years old in 2025.

What condition is SH 368 Ml over Empire Irrigation Canal 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 February 2025.

How much traffic does SH 368 Ml over Empire Irrigation Canal carry?

About 230 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is SH 368 Ml over Empire Irrigation Canal?

The structure is 43 ft (13.1 m) long with a longest span of 40 ft (12.2 m) and a deck 25 ft wide.

Who owns SH 368 Ml over Empire Irrigation Canal?

It is owned by the State Highway Agency.