US Bridges

FL-4807 over Arroyo Del Rosario

Good

Santa Fe County, New Mexico · 0.45 M E of ST Francis/Sf · Structure no. 000000000007401

Built
1972
53 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
9,644
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

FL-4807 over Arroyo Del Rosario is a concrete culvert carrying FL-4807 over Arroyo Del Rosario in Santa Fe County, New Mexico. It was built in 1972, so it is 53 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 9,644 vehicles a day, roughly 5% of them trucks, projected to reach 13,115 by 2043. The structure is 21 ft (6.3 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesFL-4807
CrossesArroyo Del Rosario
Location0.45 M E of ST Francis/Sf
RouteCity Street 4807
CountySanta Fe County
StateNew Mexico
Coordinates35.692, -105.9467
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.3 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.3 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 traffic9,644 (2023)
Projected traffic13,115 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)
NavigationNot applicable (no waterway)

Frequently asked questions

When was FL-4807 over Arroyo Del Rosario built?

It was built in 1972, making it 53 years old in 2025.

What condition is FL-4807 over Arroyo Del Rosario 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 October 2024.

How much traffic does FL-4807 over Arroyo Del Rosario carry?

About 9,644 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is FL-4807 over Arroyo Del Rosario?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m).

Who owns FL-4807 over Arroyo Del Rosario?

It is owned by the City or Municipal Highway Agency.