US Bridges

FL-4385 over Glade Arroyo

Fair

San Juan County, New Mexico · 0.2 MI N Main St/Farmingt · Structure no. 000000000008042

Built
1977
48 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
114 ft
2 main spans
Daily traffic
4,458
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

FL-4385 over Glade Arroyo is a prestressed concrete continuous stringer/multi-beam or girder carrying FL-4385 over Glade Arroyo in San Juan County, New Mexico. It was built in 1977, so it is 48 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 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 4,458 vehicles a day, roughly 5% of them trucks, projected to reach 6,062 by 2043. The structure is 114 ft (34.7 m) long and 58 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesFL-4385
CrossesGlade Arroyo
Location0.2 MI N Main St/Farmingt
RouteCity Street 4385
CountySan Juan County
StateNew Mexico
Coordinates36.73173, -108.22039
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
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 rating55.3 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length114 ft (34.7 m)
Longest span55 ft (16.8 m)
Deck width58 ft (17.7 m)
Roadway width47 ft (14.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,458 (2023)
Projected traffic6,062 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FL-4385 over Glade Arroyo built?

It was built in 1977, making it 48 years old in 2025.

What condition is FL-4385 over Glade Arroyo 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 May 2024.

How much traffic does FL-4385 over Glade Arroyo carry?

About 4,458 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is FL-4385 over Glade Arroyo?

The structure is 114 ft (34.7 m) long with a longest span of 55 ft (16.8 m) and a deck 58 ft wide.

Who owns FL-4385 over Glade Arroyo?

It is owned by the City or Municipal Highway Agency.