US Bridges

IRR BIA RTE 402 over Don Juan River

Fair

Santa Fe County, New Mexico · .8 KM SW Ildefonso Pueblo · Structure no. 00000000000M211

Built
1977
48 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete Continuous
Length
40 ft
6 main spans
Daily traffic
300
2023 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA RTE 402 over Don Juan River is a concrete continuous culvert carrying IRR BIA RTE 402 over Don Juan River in Santa Fe 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 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 300 vehicles a day, roughly 5% of them trucks, projected to reach 351 by 2043. The structure is 40 ft (12.3 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesIRR BIA RTE 402
CrossesDon Juan River
Location.8 KM SW Ildefonso Pueblo
RouteFederal Lands Road 402
CountySanta Fe County
StateNew Mexico
Coordinates35.8842, -106.12243
Functional classRural 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
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.4 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans6
Design loadHS 20
Structure length40 ft (12.3 m)
Longest span6 ft (1.8 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2023)
Projected traffic351 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Indian Affairs
Maintained byBureau of Indian Affairs
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was IRR BIA RTE 402 over Don Juan River built?

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

What condition is IRR BIA RTE 402 over Don Juan 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 March 2023.

How much traffic does IRR BIA RTE 402 over Don Juan River carry?

About 300 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is IRR BIA RTE 402 over Don Juan River?

The structure is 40 ft (12.3 m) long with a longest span of 6 ft (1.8 m) and a deck 30 ft wide.

Who owns IRR BIA RTE 402 over Don Juan River?

It is owned by the Bureau of Indian Affairs.