FHWA NBI 2024 Inspection record Public-domain dataset

DIMND-MINN ON-RAMP

Carrying DIMND-MINN ON-RAMP over CAMPBELL CREEK, NB RAMP

MILE POINT 0.0, Anchorage, Alaska

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
31 t Inventory load rating

Bridge Snapshot: DIMND-MINN ON-RAMP

The DIMND-MINN ON-RAMP bridge in Anchorage, Alaska carries DIMND-MINN ON-RAMP over CAMPBELL CREEK, NB RAMP. It was built in 1981, making it 45 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 42.7 meters (140 feet) end to end. Daily traffic averages 4,690 vehicles, placing it in the moderately-trafficked tier of Alaska bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show a deck rating of 7/9, superstructure at 6/9, substructure at 7/9. 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 31.2 metric tons.

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

How DIMND-MINN ON-RAMP compares

▼ 3.6
Load rating vs Alaska average (34.8 t)
Bottom 43%
Lower load rating than 57% of Alaska bridges
35
Bridges in Anchorage
DIMND-MINN ON-RAMP 31.2 t
Alaska average 34.8 t

Live comparison across Alaska.

Historical Sufficiency Rating

PlainBridge-computed
97.1 / 100 - historical 80–100 band
Structural adequacy /55
54.6
Serviceability /30
30.0
Essentiality /15
14.6
Special reductions
−2.0

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 How the historical reference is calculated.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
6/9
Fair (5–6)
Substructure
7/9
Good (7–9)
Inventory Load Rating
31.2 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1981
Material
Prestressed Concrete
Number of Spans
1
Structure Length
42.7 m (140 ft)
Deck Width
11.3 m (37 ft)
Owner
State Highway Agency
Avg Daily Traffic
4,690 vehicles/day
Structure Number
1444

Condition Analysis

  • The deck (driving surface) rates good at 7/9, with no significant deterioration on file.
  • The superstructure (beams and supports above the deck) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
  • 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 DIMND-MINN ON-RAMP 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 DIMND-MINN ON-RAMP against other structures in Anchorage and across Alaska. Alaska 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 DIMND-MINN ON-RAMP?

DIMND-MINN ON-RAMP in Anchorage, Alaska has a deck rating of 7/9, superstructure rating of 6/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is DIMND-MINN ON-RAMP inspected?

DIMND-MINN ON-RAMP'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 4,690 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. DIMND-MINN ON-RAMP 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 DIMND-MINN ON-RAMP?

DIMND-MINN ON-RAMP has an NBI inventory load rating of 31.2 metric tons.

Who is responsible for maintaining DIMND-MINN ON-RAMP?

DIMND-MINN ON-RAMP is owned and maintained by State Highway Agency.

How old is DIMND-MINN ON-RAMP and does age affect safety?

DIMND-MINN ON-RAMP was built in 1981, making it 45 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.