US Bridges

NM-605 over San Mateo Creek

Good

Cibola County, New Mexico · 19.2 MI N of JCT NM-122 · Structure no. 000000000007974

Built
1979
46 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
30 ft
2 main spans
Daily traffic
318
2023 count
Owner
State
State Highway Agency

About this bridge

NM-605 over San Mateo Creek is a concrete culvert carrying NM-605 over San Mateo Creek in Cibola County, New Mexico. It was built in 1979, so it is 46 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 318 vehicles a day, roughly 11% of them trucks, projected to reach 432 by 2043. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 98.8 mi (159 km).

CarriesNM-605
CrossesSan Mateo Creek
Location19.2 MI N of JCT NM-122
RouteState Highway 605
Coordinates35.33585, -107.68799
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic318 (2023)
Projected traffic432 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was NM-605 over San Mateo Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is NM-605 over San Mateo Creek 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 September 2023.

How much traffic does NM-605 over San Mateo Creek carry?

About 318 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is NM-605 over San Mateo Creek?

The structure is 30 ft (9.1 m) long with a longest span of 12 ft (3.7 m).

Who owns NM-605 over San Mateo Creek?

It is owned by the State Highway Agency.