US Bridges

IRR/NM-30 over Guachupange Arroyo

Fair

Rio Arriba County, New Mexico · 0.30 MI S of JCT US-84 · Structure no. 000000000006990

Built
1969
56 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
60 ft
5 main spans
Daily traffic
7,677
2023 count
Owner
State
State Highway Agency

About this bridge

IRR/NM-30 over Guachupange Arroyo is a concrete culvert carrying IRR/NM-30 over Guachupange Arroyo in Rio Arriba County, New Mexico. It was built in 1969, so it is 56 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 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 7,677 vehicles a day, roughly 5% of them trucks, projected to reach 10,440 by 2043. The structure is 60 ft (18.4 m) long. If it were closed, the detour would be 26.7 mi (43 km).

Location

Open in Google Maps
CarriesIRR/NM-30
CrossesGuachupange Arroyo
Location0.30 MI S of JCT US-84
RouteState Highway 30
CountyRio Arriba County
StateNew Mexico
Coordinates35.98615, -106.08037
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans5
Design loadHS 20
Structure length60 ft (18.4 m)
Longest span6 ft (1.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,677 (2023)
Projected traffic10,440 by 2043
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.7 mi (43 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$393,000 (2030 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was IRR/NM-30 over Guachupange Arroyo built?

It was built in 1969, making it 56 years old in 2025.

What condition is IRR/NM-30 over Guachupange 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 November 2023.

How much traffic does IRR/NM-30 over Guachupange Arroyo carry?

About 7,677 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is IRR/NM-30 over Guachupange Arroyo?

The structure is 60 ft (18.4 m) long with a longest span of 6 ft (1.8 m).

Who owns IRR/NM-30 over Guachupange Arroyo?

It is owned by the State Highway Agency.