FHWA NBI 2024 Inspection record Public-domain dataset

CRYSTAL RD

Carrying CRYSTAL RD over STREAM

092062507, Clayton, Iowa

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
58 t Inventory load rating

Bridge Snapshot: CRYSTAL RD

The CRYSTAL RD bridge in Clayton, Iowa carries CRYSTAL RD over STREAM. It was built in 1988, making it 38 years old today. The structure is built primarily of concrete and spans 3 sections, stretching 38.1 meters (125 feet) end to end. Daily traffic averages 88 vehicles, placing it in the lower-traffic tier of Iowa bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure 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 58.1 metric tons.

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

How CRYSTAL RD compares

▲ 27.2
Load rating vs Iowa average (30.9 t)
Top 3%
Higher load rating than 97% of Iowa bridges
214
Bridges in Clayton · 21 in Poor condition
CRYSTAL RD 58.1 t
Iowa average 30.9 t

Live comparison across Iowa.

Historical Sufficiency Rating

PlainBridge-computed
100.0 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
30.0
Essentiality /15
15.0
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 How the historical reference is calculated.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
7/9
Good (7–9)
Superstructure
7/9
Good (7–9)
Substructure
7/9
Good (7–9)
Inventory Load Rating
58.1 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1988
Material
Concrete
Number of Spans
3
Structure Length
38.1 m (125 ft)
Deck Width
9.8 m (32 ft)
Owner
County Highway Agency
Avg Daily Traffic
88 vehicles/day
Structure Number
000000000119331

Condition Analysis

  • At 7/9, the deck (driving surface) is in good shape and shows no significant wear.
  • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
  • 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 CRYSTAL RD 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 CRYSTAL RD against other structures in Clayton and across Iowa. Iowa 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 CRYSTAL RD?

CRYSTAL RD in Clayton, Iowa has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is CRYSTAL RD inspected?

CRYSTAL RD'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 88 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. CRYSTAL RD 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 CRYSTAL RD?

CRYSTAL RD has an NBI inventory load rating of 58.1 metric tons.

Who is responsible for maintaining CRYSTAL RD?

CRYSTAL RD is owned and maintained by County Highway Agency.

How old is CRYSTAL RD and does age affect safety?

CRYSTAL RD was built in 1988, making it 38 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.