FHWA NBI 2024 Inspection record Public-domain dataset

GRIZZLY FLAT ROAD

Carrying GRIZZLY FLAT ROAD over STEELY FK COSUMNES RIVER

7.0 MI E OF MT AUKUM RD, El Dorado, California

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
10 t Inventory load rating

Bridge Snapshot: GRIZZLY FLAT ROAD

The GRIZZLY FLAT ROAD bridge in El Dorado, California carries GRIZZLY FLAT ROAD over STEELY FK COSUMNES RIVER. It was built in 1936, making it 90 years old today. The structure is built primarily of concrete and spans 1 section, stretching 20.1 meters (66 feet) end to end. Daily traffic averages 2,080 vehicles, placing it in the moderately-trafficked tier of California bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 4/9, superstructure at 5/9, substructure at 5/9. 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. Its NBI inventory load rating is 10.4 metric tons.

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

How GRIZZLY FLAT ROAD compares

▼ 20.9
Load rating vs California average (31.3 t)
Bottom 1%
Lower load rating than 99% of California bridges
196
Bridges in El Dorado · 10 in Poor condition
GRIZZLY FLAT ROAD 10.4 t
California average 31.3 t

Live comparison across California.

Historical Sufficiency Rating

PlainBridge-computed
15.5 / 100 - historical under-20 band
Structural adequacy /55
11.4
Serviceability /30
2.0
Essentiality /15
2.0
Special reductions
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 How the historical reference is calculated.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
4/9
Poor (1–4)
Superstructure
5/9
Fair (5–6)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
10.4 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1936
Material
Concrete
Number of Spans
1
Structure Length
20.1 m (66 ft)
Deck Width
7.5 m (25 ft)
Owner
County Highway Agency
Avg Daily Traffic
2,080 vehicles/day
Structure Number
25C0090

Condition Analysis

  • The deck (driving surface) is in poor condition (4/9), showing advanced deterioration that may require priority repair.
  • The superstructure (beams and supports above the deck) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
  • At 5/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.

How to read this record

GRIZZLY FLAT ROAD 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 GRIZZLY FLAT ROAD against other structures in El Dorado 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 GRIZZLY FLAT ROAD?

GRIZZLY FLAT ROAD in El Dorado, California has a deck rating of 4/9, superstructure rating of 5/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is GRIZZLY FLAT ROAD inspected?

GRIZZLY FLAT 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 2,080 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. GRIZZLY FLAT ROAD 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 GRIZZLY FLAT ROAD?

GRIZZLY FLAT ROAD has an NBI inventory load rating of 10.4 metric tons.

Who is responsible for maintaining GRIZZLY FLAT ROAD?

GRIZZLY FLAT ROAD is owned and maintained by County Highway Agency.

How old is GRIZZLY FLAT ROAD and does age affect safety?

GRIZZLY FLAT ROAD was built in 1936, making it 90 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.