US Bridges

45-Z003 over Kiffen Canyon

Good

San Juan County, New Mexico · 6.2 MI N Nm 516 Sjcr 2900 · Structure no. 000000000009508

Built
2011
14 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
103 ft
1 main span
Daily traffic
1,384
2023 count
Owner
County
County Highway Agency

About this bridge

45-Z003 over Kiffen Canyon is a prestressed concrete stringer/multi-beam or girder carrying 45-Z003 over Kiffen Canyon in San Juan County, New Mexico. It was built in 2011, so it is 14 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,384 vehicles a day, roughly 5% of them trucks, projected to reach 1,882 by 2043. The structure is 103 ft (31.4 m) long and 39 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
Carries45-Z003
CrossesKiffen Canyon
Location6.2 MI N Nm 516 Sjcr 2900
RouteCounty Highway 45003
CountySan Juan County
StateNew Mexico
Coordinates36.89591, -107.94484
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating79.6 US tons
Inventory rating32.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length103 ft (31.4 m)
Longest span103 ft (31.4 m)
Deck width39 ft (11.9 m)
Roadway width37 ft (11.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,384 (2023)
Projected traffic1,882 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$500,000 (2070 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was 45-Z003 over Kiffen Canyon built?

It was built in 2011, making it 14 years old in 2025.

What condition is 45-Z003 over Kiffen Canyon in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does 45-Z003 over Kiffen Canyon carry?

About 1,384 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is 45-Z003 over Kiffen Canyon?

The structure is 103 ft (31.4 m) long with a longest span of 103 ft (31.4 m) and a deck 39 ft wide.

Who owns 45-Z003 over Kiffen Canyon?

It is owned by the County Highway Agency.