L-00021
Carrying L-00021 over I-10 EBL and WBL
24.7 M E Ariz St Line, Hidalgo, New Mexico
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
L-00021 in Hidalgo, New Mexico is rated Poor in the FHWA's 2024 National Bridge Inventory.
Built in 1972, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 4. The lowest applicable rating sets the federal condition category, so this Poor result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.
NBI record plate
Structure NM:000000000007301
INTERSTATE-ERA · PRESTRESS · LONG-SPAN-RUN · SUPER-LED · ARTERIAL-ADT · STANDARD-LOAD · CAT-POOR
- INTERSTATE-ERA 1950–1979
- PRESTRESS Prestressed concrete
- LONG-SPAN-RUN 4 spans
- SUPER-LED Superstructure-led
- ARTERIAL-ADT Arterial ADT
- STANDARD-LOAD Standard load
- CAT-POOR Poor
Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.
Bridge Snapshot: L-00021
The L-00021 bridge in Hidalgo, New Mexico carries L-00021 over I-10 EBL and WBL. It was built in 1972, making it 54 years old today. The structure is built primarily of prestressed concrete and spans 4 sections, stretching 70.1 meters (230 feet) end to end. Daily traffic averages 2,521 vehicles, placing it in the moderately-trafficked tier of New Mexico bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show a deck rating of 5/9, superstructure at 4/9, substructure at 6/9. The weakest component sits in poor condition. Because at least one major component scores 4 or lower, this bridge falls in FHWA's Poor condition category. That category is not a closure order.
How L-00021 compares
Age against the county: built in 1972, earlier than 15 of Hidalgo's 58 bridges with a recorded construction year (26%), against a county median build year of 1962. This is one of the newer structures in its county.
Live comparison across New Mexico bridges with a recorded inventory load rating (4,030 of 4,035 rated).
L-00021 vs every rated New Mexico bridge
Inventory load rating (metric tons), FHWA NBI, this state
28 Top 80% higher than 20% of 4,030 bridges
rated New Mexico bridges, bucketed by value
Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · August 2026
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.
Hidalgo inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 58 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.
Structural Details
- Year Built
- 1972
- Material
- Prestressed Concrete
- Number of Spans
- 4
- Structure Length
- 70.1 m (230 ft)
- Deck Width
- 13.1 m (43 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 2,521 vehicles/day
- Structure Number
- 000000000007301
Condition Analysis
- • The deck (driving surface) rates fair at 5/9, minor deterioration that routine maintenance should address.
- • At 4/9, the superstructure (beams and supports above the deck) is in poor shape, with advanced wear on file for this vintage.
- • The substructure (piers and abutments) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
L-00021 is in the federal Poor condition category. That is a component-based result, not a closure order.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
- Compare L-00021 against other structures in Hidalgo and across New Mexico. New Mexico bridges
- Noticed visible damage or a safety concern? Report it to the agency that owns the bridge, or call 911 in an emergency. How to report a bridge
Condition codes come straight from the FHWA National Bridge Inventory and are not a real-time safety judgment. Only the owning agency, a state DOT, county, or other owner, can post, restrict, or close a bridge.
Frequently Asked Questions
What do the condition ratings mean for L-00021?
L-00021 in Hidalgo, New Mexico has a deck rating of 5/9, superstructure rating of 4/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is L-00021 inspected?
L-00021's responsible agency sets its routine interval under FHWA's risk-based inspection rules; this page does not expose the scheduled interval. It carries about 2,521 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. L-00021 is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for L-00021?
L-00021 has an NBI inventory load rating of 28.1 metric tons.
Who is responsible for maintaining L-00021?
L-00021 is owned and maintained by State Highway Agency.
How old is L-00021 and does age affect safety?
L-00021 was built in 1972, making it 54 years old.
Disclaimer: Bridge condition data is from the FHWA NBI and reflects the last reported inspection. A Poor condition rating is not a live declaration that a bridge is closed or unsafe for travel. For current closure, posting, or safety information, contact the responsible transportation agency.
Share this inspection record
Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.