US Bridges

Yarrow Street over Farmers Highline Canal

Fair

Jefferson County, Colorado · S. of 91st Avenue · Structure no. WST06-12-M

Built
1975
50 years old
Condition
Fair
inspected August 2023
Type
Tee Beam
Prestressed Concrete
Length
46 ft
1 main span
Daily traffic
2,735
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Yarrow Street over Farmers Highline Canal is a prestressed concrete tee beam carrying Yarrow Street over Farmers Highline Canal in Jefferson County, Colorado. It was built in 1975, so it is 50 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 2,735 vehicles a day, roughly 2% of them trucks, projected to reach 3,145 by 2041. The structure is 46 ft (14 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesYarrow Street
CrossesFarmers Highline Canal
LocationS. of 91st Avenue
RouteCity Street 0
Coordinates39.86124, -105.08589
Functional classUrban Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
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 rating40 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length46 ft (14 m)
Longest span42 ft (12.8 m)
Deck width45 ft (13.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,735 (2021)
Projected traffic3,145 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Yarrow Street over Farmers Highline Canal built?

It was built in 1975, making it 50 years old in 2025.

What condition is Yarrow Street over Farmers Highline 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 August 2023.

How much traffic does Yarrow Street over Farmers Highline Canal carry?

About 2,735 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Yarrow Street over Farmers Highline Canal?

The structure is 46 ft (14 m) long with a longest span of 42 ft (12.8 m) and a deck 45 ft wide.

Who owns Yarrow Street over Farmers Highline Canal?

It is owned by the City or Municipal Highway Agency.