FHWA NBI 2024 Inspection record Public-domain dataset

Rockwell Street

Carrying Rockwell Street over Big Thompson River

60 Ft W of East River, Larimer, Colorado

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
33 t Inventory load rating

Bridge Snapshot: Rockwell Street

The Rockwell Street bridge in Larimer, Colorado carries Rockwell Street over Big Thompson River. It was built in 1971, making it 55 years old today. It was last reconstructed in 1997, extending its service life. The structure is built primarily of prestressed concrete and spans 1 section, stretching 16.2 meters (53 feet) end to end. Daily traffic averages 4,139 vehicles, placing it in the moderately-trafficked tier of Colorado bridges. It is owned and maintained by City/Municipal Highway Agency.

The latest FHWA inspection records show a deck rating of 6/9, superstructure at 7/9, substructure at 6/9. 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 32.7 metric tons.

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

How Rockwell Street compares

▼ 4.4
Load rating vs Colorado average (37.1 t)
Bottom 42%
Lower load rating than 58% of Colorado bridges
559
Bridges in Larimer · 11 in Poor condition
Rockwell Street 32.7 t
Colorado average 37.1 t

Live comparison across Colorado.

Historical Sufficiency Rating

PlainBridge-computed
77.5 / 100 - historical 50–79.9 band
Structural adequacy /55
55.0
Serviceability /30
11.0
Essentiality /15
14.5
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 How the historical reference is calculated.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

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

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

Structural Details

Year Built
1971
Last Reconstructed
1997
Material
Prestressed Concrete
Number of Spans
1
Structure Length
16.2 m (53 ft)
Deck Width
11.3 m (37 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
4,139 vehicles/day
Structure Number
EP-RCKWLL-THOM

Condition Analysis

  • At 6/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
  • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
  • The substructure (piers and abutments) rates fair at 6/9, minor deterioration that routine maintenance should address.

How to read this record

This page shows what the last federal inspection recorded, not whether Rockwell Street 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 Rockwell Street against other structures in Larimer and across Colorado. Colorado 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 Rockwell Street?

Rockwell Street in Larimer, Colorado has a deck rating of 6/9, superstructure rating of 7/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.

How often is Rockwell Street inspected?

Rockwell Street'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 4,139 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. Rockwell Street 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 Rockwell Street?

Rockwell Street has an NBI inventory load rating of 32.7 metric tons.

Who is responsible for maintaining Rockwell Street?

Rockwell Street is owned and maintained by City/Municipal Highway Agency.

How old is Rockwell Street and does age affect safety?

Rockwell Street was built in 1971, making it 55 years old and last reconstructed in 1997.

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.