US Bridges

FL-4750 over Santa Fe River

Fair

Santa Fe County, New Mexico · JCT Palace & Alameda · Structure no. 000000000008358

Built
1979
46 years old
Condition
Fair
inspected January 2023
Type
Frame
Concrete
Length
48 ft
1 main span
Daily traffic
1,802
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

FL-4750 over Santa Fe River is a concrete frame carrying FL-4750 over Santa Fe River in Santa Fe County, New Mexico. It was built in 1979, so it is 46 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 1,802 vehicles a day, roughly 5% of them trucks, projected to reach 2,450 by 2043. The structure is 48 ft (14.5 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesFL-4750
CrossesSanta Fe River
LocationJCT Palace & Alameda
RouteCity Street 4750
CountySanta Fe County
StateNew Mexico
Coordinates35.68051, -105.92336
Functional classUrban Collector

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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating46.8 US tons
Inventory rating28.8 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length48 ft (14.5 m)
Longest span42 ft (12.8 m)
Deck width37 ft (11.4 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,802 (2023)
Projected traffic2,450 by 2043
Trucks5%
Lanes on structure2
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$113,000 (2030 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FL-4750 over Santa Fe River built?

It was built in 1979, making it 46 years old in 2025.

What condition is FL-4750 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 January 2023.

How much traffic does FL-4750 over Santa Fe River carry?

About 1,802 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is FL-4750 over Santa Fe River?

The structure is 48 ft (14.5 m) long with a longest span of 42 ft (12.8 m) and a deck 37 ft wide.

Who owns FL-4750 over Santa Fe River?

It is owned by the City or Municipal Highway Agency.