FHWA NBI 2024 Inspection record Public-domain dataset

S. PERIMETER ROAD

Carrying S. PERIMETER ROAD over LAGUNA SECA RACETRACK

1.2 MILES E. OF HWY 68, Monterey, California

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
29 t Inventory load rating

Bridge Snapshot: S. PERIMETER ROAD

The S. PERIMETER ROAD bridge in Monterey, California carries S. PERIMETER ROAD over LAGUNA SECA RACETRACK. It was built in 1980, making it 46 years old today. The structure is built primarily of steel and spans 1 section, stretching 26.8 meters (88 feet) end to end. Daily traffic averages 150 vehicles, placing it in the lower-traffic tier of California bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 7/9, superstructure at 5/9, substructure at 7/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 28.5 metric tons.

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

How S. PERIMETER ROAD compares

▼ 2.8
Load rating vs California average (31.3 t)
Bottom 34%
Lower load rating than 66% of California bridges
390
Bridges in Monterey · 28 in Poor condition
S. PERIMETER ROAD 28.5 t
California average 31.3 t

Live comparison across California.

Historical Sufficiency Rating

PlainBridge-computed
77.8 / 100 - historical 50–79.9 band
Structural adequacy /55
42.5
Serviceability /30
29.0
Essentiality /15
13.3
Special reductions
−7.0

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 How the historical reference is calculated.

Condition Ratings

Deck
7/9
Good (7–9)
Superstructure
5/9
Fair (5–6)
Substructure
7/9
Good (7–9)
Inventory Load Rating
28.5 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1980
Material
Steel
Number of Spans
1
Structure Length
26.8 m (88 ft)
Deck Width
11.4 m (37 ft)
Owner
County Highway Agency
Avg Daily Traffic
150 vehicles/day
Structure Number
44C0203

Condition Analysis

  • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
  • At 5/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
  • At 7/9, the substructure (piers and abutments) is in good shape and shows no significant wear.

How to read this record

This page shows what the last federal inspection recorded, not whether S. PERIMETER ROAD 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 S. PERIMETER ROAD against other structures in Monterey 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 S. PERIMETER ROAD?

S. PERIMETER ROAD in Monterey, California has a deck rating of 7/9, superstructure rating of 5/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is S. PERIMETER ROAD inspected?

S. PERIMETER ROAD'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 150 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. S. PERIMETER ROAD is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for S. PERIMETER ROAD?

S. PERIMETER ROAD has an NBI inventory load rating of 28.5 metric tons.

Who is responsible for maintaining S. PERIMETER ROAD?

S. PERIMETER ROAD is owned and maintained by County Highway Agency.

How old is S. PERIMETER ROAD and does age affect safety?

S. PERIMETER ROAD was built in 1980, making it 46 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.