US Bridges

49-072A over Big Creek

Good

Santa Fe County, New Mexico · E of Nm 590 @ Mm 4.10 · Structure no. 000000000009817

Built
2020
5 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
38 ft
1 main span
Daily traffic
270
2020 count
Owner
County
County Highway Agency

About this bridge

49-072A over Big Creek is a steel stringer/multi-beam or girder carrying 49-072A over Big Creek in Santa Fe County, New Mexico. It was built in 2020, so it is 5 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 270 vehicles a day, projected to reach 431 by 2040. The structure is 38 ft (11.6 m) long and 20 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
Carries49-072A
CrossesBig Creek
LocationE of Nm 590 @ Mm 4.10
RouteCounty Highway 49072
CountySanta Fe County
StateNew Mexico
Coordinates35.74349, -105.91609
Functional classRural Local

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 protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating87.4 US tons
Inventory rating52.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length38 ft (11.6 m)
Longest span38 ft (11.6 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic270 (2020)
Projected traffic431 by 2040
Trucks—
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$82,000 (2030 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 49-072A over Big Creek built?

It was built in 2020, making it 5 years old in 2025.

What condition is 49-072A over Big 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 August 2023.

How much traffic does 49-072A over Big Creek carry?

About 270 vehicles per day (2020 count).

How long is 49-072A over Big Creek?

The structure is 38 ft (11.6 m) long with a longest span of 38 ft (11.6 m) and a deck 20 ft wide.

Who owns 49-072A over Big Creek?

It is owned by the County Highway Agency.