US Bridges

FL-4797 over Santa Fe River

Good

Santa Fe County, New Mexico · Sandoval & Alameda · Structure no. 000000000006945

Built
1969
56 years old, rebuilt 2008
Condition
Good
inspected January 2023
Type
Frame
Concrete
Length
52 ft
1 main span
Daily traffic
5,766
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

FL-4797 over Santa Fe River is a concrete frame carrying FL-4797 over Santa Fe River in Santa Fe County, New Mexico. It was built in 1969 and reconstructed in 2008, so it is 56 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 5,766 vehicles a day, roughly 5% of them trucks, projected to reach 7,841 by 2043. The structure is 52 ft (15.8 m) long and 80 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesFL-4797
CrossesSanta Fe River
LocationSandoval & Alameda
RouteCity Street 4797
CountySanta Fe County
StateNew Mexico
Coordinates35.68635, -105.94285
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.8 US tons
Inventory rating28.8 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length52 ft (15.8 m)
Longest span51 ft (15.5 m)
Deck width80 ft (24.4 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,766 (2023)
Projected traffic7,841 by 2043
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$300,000 (2030 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FL-4797 over Santa Fe River built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 2008.

What condition is FL-4797 over Santa Fe River 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 January 2023.

How much traffic does FL-4797 over Santa Fe River carry?

About 5,766 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is FL-4797 over Santa Fe River?

The structure is 52 ft (15.8 m) long with a longest span of 51 ft (15.5 m) and a deck 80 ft wide.

Who owns FL-4797 over Santa Fe River?

It is owned by the City or Municipal Highway Agency.