FHWA NBI 2024 Inspection record Public-domain dataset

CR 70

Carrying CR 70 over JUD DITCH # 36;BR 14

0.3 MI E OF JCT CSAH 17, Redwood, Minnesota

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
44 t Inventory load rating

Bridge Snapshot: CR 70

The CR 70 bridge in Redwood, Minnesota carries CR 70 over JUD DITCH # 36;BR 14. It was built in 1965, making it 61 years old today. The structure is built primarily of wood or timber and spans 2 sections, stretching 11.0 meters (36 feet) end to end. Daily traffic averages 25 vehicles, placing it in the lower-traffic tier of Minnesota bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 5/9, superstructure at 5/9, substructure at 4/9. 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 44.4 metric tons.

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

How CR 70 compares

▲ 8.7
Load rating vs Minnesota average (35.7 t)
Top 9%
Higher load rating than 91% of Minnesota bridges
190
Bridges in Redwood · 20 in Poor condition
CR 70 44.4 t
Minnesota average 35.7 t

Live comparison across Minnesota.

Historical Sufficiency Rating

PlainBridge-computed
64.0 / 100 - historical 50–79.9 band
Structural adequacy /55
30.0
Serviceability /30
22.0
Essentiality /15
15.0
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 How the historical reference is calculated.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
5/9
Fair (5–6)
Superstructure
5/9
Fair (5–6)
Substructure
4/9
Poor (1–4)
Inventory Load Rating
44.4 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1965
Material
Wood or Timber
Number of Spans
2
Structure Length
11.0 m (36 ft)
Deck Width
8.4 m (28 ft)
Owner
County Highway Agency
Avg Daily Traffic
25 vehicles/day
Structure Number
64513

Condition Analysis

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

How to read this record

CR 70 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 CR 70 against other structures in Redwood and across Minnesota. Minnesota 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 CR 70?

CR 70 in Redwood, Minnesota has a deck rating of 5/9, superstructure rating of 5/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.

How often is CR 70 inspected?

CR 70'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 25 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. CR 70 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 CR 70?

CR 70 has an NBI inventory load rating of 44.4 metric tons.

Who is responsible for maintaining CR 70?

CR 70 is owned and maintained by County Highway Agency.

How old is CR 70 and does age affect safety?

CR 70 was built in 1965, making it 61 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.