US Bridges

SH 10 Ml over Catlin Canal

Fair

Otero County, Colorado · 0.3 MI E of JCT SH 71 · Structure no. M-22-AA

Built
1969
56 years old
Condition
Fair
inspected February 2024
Type
Slab
Concrete
Length
32 ft
1 main span
Daily traffic
610
2020 count
Owner
State
State Highway Agency

About this bridge

SH 10 Ml over Catlin Canal is a concrete slab carrying SH 10 Ml over Catlin Canal in Otero County, Colorado. It was built in 1969, so it is 56 years old, older 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 610 vehicles a day, roughly 15% of them trucks, projected to reach 683 by 2040. The structure is 32 ft (9.8 m) long and 40 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSH 10 Ml
CrossesCatlin Canal
Location0.3 MI E of JCT SH 71
RouteState Highway 10A
Coordinates37.98238, -103.71579
Functional classRural Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating89.9 US tons
Inventory rating63.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span26 ft (8 m)
Deck width40 ft (12.3 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic610 (2020)
Projected traffic683 by 2040
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 10 Ml over Catlin Canal built?

It was built in 1969, making it 56 years old in 2025.

What condition is SH 10 Ml over Catlin Canal 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 February 2024.

How much traffic does SH 10 Ml over Catlin Canal carry?

About 610 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is SH 10 Ml over Catlin Canal?

The structure is 32 ft (9.8 m) long with a longest span of 26 ft (8 m) and a deck 40 ft wide.

Who owns SH 10 Ml over Catlin Canal?

It is owned by the State Highway Agency.