US Bridges

49-Z006 over Santa Cruz River

Fair

Santa Fe County, New Mexico · 0.75 MI S of JCT NM-76 · Structure no. 000000000008386

Built
1980
45 years old
Condition
Fair
inspected March 2024
Type
Tee Beam
Prestressed Concrete
Length
44 ft
1 main span
Daily traffic
326
2023 count
Owner
County
County Highway Agency

About this bridge

49-Z006 over Santa Cruz River is a prestressed concrete tee beam carrying 49-Z006 over Santa Cruz River in Santa Fe County, New Mexico. It was built in 1980, so it is 45 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 326 vehicles a day, projected to reach 443 by 2043. The structure is 44 ft (13.4 m) long and 11 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries49-Z006
CrossesSanta Cruz River
Location0.75 MI S of JCT NM-76
RouteCounty Highway 49006
CountySanta Fe County
StateNew Mexico
Coordinates35.9958, -105.9379
Functional classUrban Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating50 US tons
Inventory rating26.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadH 15
Structure length44 ft (13.4 m)
Longest span44 ft (13.4 m)
Deck width11 ft (3.4 m)
Roadway width11 ft (3.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic326 (2023)
Projected traffic443 by 2043
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$31,000 (2030 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 49-Z006 over Santa Cruz River built?

It was built in 1980, making it 45 years old in 2025.

What condition is 49-Z006 over Santa Cruz River 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 March 2024.

How much traffic does 49-Z006 over Santa Cruz River carry?

About 326 vehicles per day (2023 count).

How long is 49-Z006 over Santa Cruz River?

The structure is 44 ft (13.4 m) long with a longest span of 44 ft (13.4 m) and a deck 11 ft wide.

Who owns 49-Z006 over Santa Cruz River?

It is owned by the County Highway Agency.