US Bridges

SH 69 Ml over Huerfano River

Fair

Huerfano County, Colorado · 15.7 MI NW of JCT I 25 · Structure no. N-16-C

Built
1966
59 years old
Condition
Fair
inspected January 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
142 ft
2 main spans
Daily traffic
740
2020 count
Owner
State
State Highway Agency

About this bridge

SH 69 Ml over Huerfano River is a prestressed concrete box beam or girders - multiple carrying SH 69 Ml over Huerfano River in Huerfano County, Colorado. It was built in 1966, so it is 59 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 740 vehicles a day, roughly 11% of them trucks, projected to reach 1,006 by 2040. The structure is 142 ft (43.4 m) long and 32 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSH 69 Ml
CrossesHuerfano River
Location15.7 MI NW of JCT I 25
RouteState Highway 69A
Coordinates37.72779, -105.01707
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating36 US tons
Inventory rating21.6 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans2
Design loadHS 20
Structure length142 ft (43.4 m)
Longest span69 ft (21 m)
Deck width32 ft (9.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic740 (2020)
Projected traffic1,006 by 2040
Trucks11%
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 69 Ml over Huerfano River built?

It was built in 1966, making it 59 years old in 2025.

What condition is SH 69 Ml over Huerfano River 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 January 2025.

How much traffic does SH 69 Ml over Huerfano River carry?

About 740 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is SH 69 Ml over Huerfano River?

The structure is 142 ft (43.4 m) long with a longest span of 69 ft (21 m) and a deck 32 ft wide.

Who owns SH 69 Ml over Huerfano River?

It is owned by the State Highway Agency.