US Bridges

43-Z001 over Chico Arroyo

Fair

Sandoval County, New Mexico · 20.7 Mi. S.Of US 550 · Structure no. 000000000008567

Built
1983
42 years old
Condition
Fair
inspected February 2024
Type
Tee Beam
Prestressed Concrete
Length
122 ft
3 main spans
Daily traffic
102
2023 count
Owner
County
County Highway Agency

About this bridge

43-Z001 over Chico Arroyo is a prestressed concrete tee beam carrying 43-Z001 over Chico Arroyo in Sandoval County, New Mexico. It was built in 1983, so it is 42 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 102 vehicles a day, projected to reach 138 by 2043. The structure is 122 ft (37.2 m) long and 24 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
Carries43-Z001
CrossesChico Arroyo
Location20.7 Mi. S.Of US 550
RouteCounty Highway 43001
CountySandoval County
StateNew Mexico
Coordinates35.59276, -107.1912
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length122 ft (37.2 m)
Longest span50 ft (15.2 m)
Deck width24 ft (7.4 m)
Roadway width21 ft (6.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic102 (2023)
Projected traffic138 by 2043
Trucks—
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 43-Z001 over Chico Arroyo built?

It was built in 1983, making it 42 years old in 2025.

What condition is 43-Z001 over Chico Arroyo 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 February 2024.

How much traffic does 43-Z001 over Chico Arroyo carry?

About 102 vehicles per day (2023 count).

How long is 43-Z001 over Chico Arroyo?

The structure is 122 ft (37.2 m) long with a longest span of 50 ft (15.2 m) and a deck 24 ft wide.

Who owns 43-Z001 over Chico Arroyo?

It is owned by the County Highway Agency.