US Bridges

SH 266 Ml over Holbrook Canal

Fair

Otero County, Colorado · 4 MI NE of Rocky Ford · Structure no. L-22-BA

Built
1937
88 years old, rebuilt 1982
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
330
2020 count
Owner
State
State Highway Agency

About this bridge

SH 266 Ml over Holbrook Canal is a steel stringer/multi-beam or girder carrying SH 266 Ml over Holbrook Canal in Otero County, Colorado. It was built in 1937 and reconstructed in 1982, so it is 88 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 5 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 330 vehicles a day, roughly 8% of them trucks, projected to reach 422 by 2040. The structure is 40 ft (12.2 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSH 266 Ml
CrossesHolbrook Canal
Location4 MI NE of Rocky Ford
RouteState Highway 266A
Coordinates38.06883, -103.65444
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.8 US tons
Inventory rating59.2 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span38 ft (11.6 m)
Deck width31 ft (9.5 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic330 (2020)
Projected traffic422 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 266 Ml over Holbrook Canal built?

It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1982.

What condition is SH 266 Ml over Holbrook 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 March 2024.

How much traffic does SH 266 Ml over Holbrook Canal carry?

About 330 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is SH 266 Ml over Holbrook Canal?

The structure is 40 ft (12.2 m) long with a longest span of 38 ft (11.6 m) and a deck 31 ft wide.

Who owns SH 266 Ml over Holbrook Canal?

It is owned by the State Highway Agency.