US Bridges

Seven Bar Loop over Black Diversion Channel

Fair

Bernalillo County, New Mexico · 0.3 MI W of Coors By-Pass · Structure no. 000000000008961

Built
1995
30 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
62 ft
1 main span
Daily traffic
4,775
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Seven Bar Loop over Black Diversion Channel is a prestressed concrete stringer/multi-beam or girder carrying Seven Bar Loop over Black Diversion Channel in Bernalillo County, New Mexico. It was built in 1995, so it is 30 years old, younger than the New Mexico average of 51.5 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 4,775 vehicles a day, roughly 3% of them trucks, projected to reach 6,494 by 2043. The structure is 62 ft (18.9 m) long and 56 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSeven Bar Loop
CrossesBlack Diversion Channel
Location0.3 MI W of Coors By-Pass
RouteCity Street 5071
Coordinates35.20073, -106.66686
Functional classUrban 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating59 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length62 ft (18.9 m)
Longest span60 ft (18.3 m)
Deck width56 ft (17.1 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,775 (2023)
Projected traffic6,494 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Seven Bar Loop over Black Diversion Channel built?

It was built in 1995, making it 30 years old in 2025.

What condition is Seven Bar Loop over Black Diversion Channel 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 Seven Bar Loop over Black Diversion Channel carry?

About 4,775 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Seven Bar Loop over Black Diversion Channel?

The structure is 62 ft (18.9 m) long with a longest span of 60 ft (18.3 m) and a deck 56 ft wide.

Who owns Seven Bar Loop over Black Diversion Channel?

It is owned by the City or Municipal Highway Agency.