FHWA NBI 2024 Inspection record Public-domain dataset

SAN MATEO GATE BYP

Carrying SAN MATEO GATE BYP over CHRISTIANITOS CREEK

AT SAN MATEO GATE, San Diego, California

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
33 t Inventory load rating

Bridge Snapshot: SAN MATEO GATE BYP

The SAN MATEO GATE BYP bridge in San Diego, California carries SAN MATEO GATE BYP over CHRISTIANITOS CREEK. It was built in 2000, making it 26 years old today. The structure is built primarily of concrete and spans 3 sections, stretching 11.4 meters (37 feet) end to end. Daily traffic averages 5 vehicles, placing it in the lower-traffic tier of California bridges. It is owned and maintained by Army.

The latest FHWA inspection records show culvert at 7/9. The weakest component sits in good condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 32.6 metric tons.

Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.

How SAN MATEO GATE BYP compares

▲ 1.3
Load rating vs California average (31.3 t)
Top 25%
Higher load rating than 75% of California bridges
1,707
Bridges in San Diego · 27 in Poor condition
SAN MATEO GATE BYP 32.6 t
California average 31.3 t

Live comparison across California.

Historical Sufficiency Rating

PlainBridge-computed
97.0 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
30.0
Essentiality /15
15.0
Special reductions
−3.0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Culvert
7/9
Good (7–9)
Inventory Load Rating
32.6 t
NBI inventory level (metric tons)
Overall Condition
Good

Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.

Structural Details

Year Built
2000
Material
Concrete
Number of Spans
3
Structure Length
11.4 m (37 ft)
Deck Width
11.3 m (37 ft)
Owner
Army
Avg Daily Traffic
5 vehicles/day
Structure Number
2CA0014

How to read this record

This page shows what the last federal inspection recorded, not whether SAN MATEO GATE BYP is safe to cross today. Here is how to use it.

  • NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
  • Learn how the 0–9 condition scale and Good/Fair/Poor categories are defined. How condition ratings work
  • Compare SAN MATEO GATE BYP against other structures in San Diego and across California. California 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 SAN MATEO GATE BYP?

SAN MATEO GATE BYP in San Diego, California on the FHWA's 0–9 scale.

How often is SAN MATEO GATE BYP inspected?

SAN MATEO GATE BYP'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 5 vehicles per day.

What does “structurally deficient” mean in older bridge reports?

FHWA retired that reported status beginning with the 2018 archive. SAN MATEO GATE BYP is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for SAN MATEO GATE BYP?

SAN MATEO GATE BYP has an NBI inventory load rating of 32.6 metric tons.

Who is responsible for maintaining SAN MATEO GATE BYP?

SAN MATEO GATE BYP is owned and maintained by Army.

How old is SAN MATEO GATE BYP and does age affect safety?

SAN MATEO GATE BYP was built in 2000, making it 26 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.

Data sourced from the Federal Highway Administration National Bridge Inventory. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.