US Bridges

FL-4777 over Santa Fe River

Fair

Santa Fe County, New Mexico · Guadalupe St/Alameda/Sf · Structure no. 000000000006944

Built
1969
56 years old
Condition
Fair
inspected February 2023
Type
Slab
Concrete
Length
52 ft
1 main span
Daily traffic
8,506
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

FL-4777 over Santa Fe River is a concrete slab carrying FL-4777 over Santa Fe River in Santa Fe County, New Mexico. It was built in 1969, 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 fair condition with a lowest component rating of 5 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 8,506 vehicles a day, roughly 5% of them trucks, projected to reach 11,568 by 2043. The structure is 52 ft (15.7 m) long and 79 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesFL-4777
CrossesSanta Fe River
LocationGuadalupe St/Alameda/Sf
RouteCity Street 4777
CountySanta Fe County
StateNew Mexico
Coordinates35.68711, -105.94407
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length52 ft (15.7 m)
Longest span51 ft (15.5 m)
Deck width79 ft (24.1 m)
Roadway width67 ft (20.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,506 (2023)
Projected traffic11,568 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$350,000 (2030 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was FL-4777 over Santa Fe River built?

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

What condition is FL-4777 over Santa Fe 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 February 2023.

How much traffic does FL-4777 over Santa Fe River carry?

About 8,506 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is FL-4777 over Santa Fe River?

The structure is 52 ft (15.7 m) long with a longest span of 51 ft (15.5 m) and a deck 79 ft wide.

Who owns FL-4777 over Santa Fe River?

It is owned by the City or Municipal Highway Agency.