US Bridges

06-C12A over I-40 @ Sky City Exit 108

Fair

Cibola County, New Mexico · 18.51 M E JCT I-40/NM-117 · Structure no. 000000000006490

Built
1968
57 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
250 ft
5 main spans
Daily traffic
5,991
2023 count
Owner
State
State Highway Agency

About this bridge

06-C12A over I-40 @ Sky City Exit 108 is a steel continuous stringer/multi-beam or girder carrying 06-C12A over I-40 @ Sky City Exit 108 in Cibola County, New Mexico. It was built in 1968, so it is 57 years old, older 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 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 5,991 vehicles a day, roughly 11% of them trucks, projected to reach 8,147 by 2043. The structure is 250 ft (76.2 m) long and 31 ft wide.

Carries06-C12A
CrossesI-40 @ Sky City Exit 108
Location18.51 M E JCT I-40/NM-117
RouteCounty Highway 6012
Coordinates35.03382, -107.47343
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.2 US tons
Inventory rating35.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length250 ft (76.2 m)
Longest span58 ft (17.7 m)
Deck width31 ft (9.6 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,991 (2023)
Projected traffic8,147 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was 06-C12A over I-40 @ Sky City Exit 108 built?

It was built in 1968, making it 57 years old in 2025.

What condition is 06-C12A over I-40 @ Sky City Exit 108 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 December 2024.

How much traffic does 06-C12A over I-40 @ Sky City Exit 108 carry?

About 5,991 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is 06-C12A over I-40 @ Sky City Exit 108?

The structure is 250 ft (76.2 m) long with a longest span of 58 ft (17.7 m) and a deck 31 ft wide.

Who owns 06-C12A over I-40 @ Sky City Exit 108?

It is owned by the State Highway Agency.