US Bridges

FL-4734 over Arroyo Chamiso

Good

Santa Fe County, New Mexico · 1/4 MI S of Monte Sol · Structure no. 000000000007054

Built
1968
57 years old
Condition
Good
inspected November 2023
Type
Culvert
Concrete
Length
31 ft
3 main spans
Daily traffic
3,710
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

FL-4734 over Arroyo Chamiso is a concrete culvert carrying FL-4734 over Arroyo Chamiso in Santa Fe 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 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 3,710 vehicles a day, roughly 5% of them trucks, projected to reach 5,045 by 2043. The structure is 31 ft (9.4 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesFL-4734
CrossesArroyo Chamiso
Location1/4 MI S of Monte Sol
RouteCity Street 4732
CountySanta Fe County
StateNew Mexico
Coordinates35.66741, -105.92085
Functional classUrban Minor Arterial

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 inspectionNovember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating50 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,710 (2023)
Projected traffic5,045 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 FL-4734 over Arroyo Chamiso built?

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

What condition is FL-4734 over Arroyo Chamiso 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 November 2023.

How much traffic does FL-4734 over Arroyo Chamiso carry?

About 3,710 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is FL-4734 over Arroyo Chamiso?

The structure is 31 ft (9.4 m) long with a longest span of 10 ft (3 m).

Who owns FL-4734 over Arroyo Chamiso?

It is owned by the City or Municipal Highway Agency.