US Bridges

US 50 Ml over Tomichi Creek

Fair

Saguache County, Colorado · 12 MI E of Doyleville · Structure no. K-11-H

Built
1987
38 years old
Condition
Fair
inspected April 2024
Type
Tee Beam
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
2,300
2020 count
Owner
State
State Highway Agency

About this bridge

US 50 Ml over Tomichi Creek is a prestressed concrete tee beam carrying US 50 Ml over Tomichi Creek in Saguache County, Colorado. It was built in 1987, so it is 38 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,300 vehicles a day, roughly 13% of them trucks, projected to reach 2,507 by 2040. The structure is 60 ft (18.3 m) long and 42 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesUS 50 Ml
CrossesTomichi Creek
Location12 MI E of Doyleville
RouteU.S. Route 50A
Coordinates38.40313, -106.42221
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.5 US tons
Inventory rating34.6 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length60 ft (18.3 m)
Longest span58 ft (17.6 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,300 (2020)
Projected traffic2,507 by 2040
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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$138,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US 50 Ml over Tomichi Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is US 50 Ml over Tomichi Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2024.

How much traffic does US 50 Ml over Tomichi Creek carry?

About 2,300 vehicles per day (2020 count), of which roughly 13% are trucks.

How long is US 50 Ml over Tomichi Creek?

The structure is 60 ft (18.3 m) long with a longest span of 58 ft (17.6 m) and a deck 42 ft wide.

Who owns US 50 Ml over Tomichi Creek?

It is owned by the State Highway Agency.