US Bridges

FL-4018 over Mariposa Diversion Chanl

Fair

Bernalillo County, New Mexico · 0.75 MI W of JCT NM-448 · Structure no. 000000000008487

Built
1983
42 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
4,584
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

FL-4018 over Mariposa Diversion Chanl is a concrete culvert carrying FL-4018 over Mariposa Diversion Chanl in Bernalillo County, New Mexico. It was built in 1983, so it is 42 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 4,584 vehicles a day, roughly 5% of them trucks, projected to reach 6,234 by 2043. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesFL-4018
CrossesMariposa Diversion Chanl
Location0.75 MI W of JCT NM-448
RouteCity Street 4018
CountyBernalillo County
StateNew Mexico
Coordinates35.1454, -106.7055
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.1 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 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 traffic4,584 (2023)
Projected traffic6,234 by 2043
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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-4018 over Mariposa Diversion Chanl built?

It was built in 1983, making it 42 years old in 2025.

What condition is FL-4018 over Mariposa Diversion Chanl 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 December 2023.

How much traffic does FL-4018 over Mariposa Diversion Chanl carry?

About 4,584 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is FL-4018 over Mariposa Diversion Chanl?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns FL-4018 over Mariposa Diversion Chanl?

It is owned by the City or Municipal Highway Agency.