FHWA NBI 2024 Inspection record Public-domain dataset

SH 59 ML

Carrying SH 59 ML over COYOTE CREEK

21.8 MI NO OF JCT US 34, Yuma, Colorado

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
25 t Inventory load rating

Bridge Snapshot: SH 59 ML

The SH 59 ML bridge in Yuma, Colorado carries SH 59 ML over COYOTE CREEK. It was built in 1948, making it 78 years old today. The structure is built primarily of wood or timber and spans 7 sections, stretching 49.6 meters (163 feet) end to end. Daily traffic averages 240 vehicles, placing it in the lower-traffic tier of Colorado bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show a deck rating of 5/9, superstructure at 4/9, substructure at 5/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed. Its NBI inventory load rating is 24.5 metric tons.

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

How SH 59 ML compares

▼ 12.6
Load rating vs Colorado average (37.1 t)
Bottom 18%
Lower load rating than 82% of Colorado bridges
49
Bridges in Yuma · 2 in Poor condition
SH 59 ML 24.5 t
Colorado average 37.1 t

Live comparison across Colorado.

Historical Sufficiency Rating

PlainBridge-computed
60.7 / 100 - historical 50–79.9 band
Structural adequacy /55
22.8
Serviceability /30
23.0
Essentiality /15
14.9
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 How the historical reference is calculated.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
5/9
Fair (5–6)
Superstructure
4/9
Poor (1–4)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
24.5 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1948
Material
Wood or Timber
Number of Spans
7
Structure Length
49.6 m (163 ft)
Deck Width
7.9 m (26 ft)
Owner
State Highway Agency
Avg Daily Traffic
240 vehicles/day
Structure Number
C-26-A

Condition Analysis

  • The deck (driving surface) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
  • The superstructure (beams and supports above the deck) rates poor at 4/9, advanced deterioration that should be prioritized for repair.
  • The substructure (piers and abutments) is in fair condition (5/9), with minor deterioration that may require routine maintenance.

How to read this record

SH 59 ML 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 SH 59 ML against other structures in Yuma 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 SH 59 ML?

SH 59 ML in Yuma, Colorado has a deck rating of 5/9, superstructure rating of 4/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is SH 59 ML inspected?

SH 59 ML'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 240 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. SH 59 ML 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 SH 59 ML?

SH 59 ML has an NBI inventory load rating of 24.5 metric tons.

Who is responsible for maintaining SH 59 ML?

SH 59 ML is owned and maintained by State Highway Agency.

How old is SH 59 ML and does age affect safety?

SH 59 ML was built in 1948, making it 78 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.