FHWA NBI 2024 Inspection record Public-domain dataset

OIL WELL ROAD

Carrying OIL WELL ROAD over MOOSE CREEK

MILE POINT 9.5, Matanuska-Susitna, Alaska

Inventory: FHWA NBI 2024 · last ETL August 2026

FHWA NBI record, refreshed with each annual release.

Poor
35 t Inventory load rating Higher than 52% of rated Alaska bridges

OIL WELL ROAD in Matanuska-Susitna, Alaska is rated Poor in the FHWA's 2024 National Bridge Inventory.

Built in 1998, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 4. The lowest applicable rating sets the federal condition category, so this Poor result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.

NBI record plate

Structure AK:1985

LATE-CENTURY · STEEL · SINGLE-SPAN · SUB-LED · TRACE-ADT · STANDARD-LOAD · CAT-POOR

  • LATE-CENTURY 1980–1999
  • STEEL Steel
  • SINGLE-SPAN Single span
  • SUB-LED Substructure-led
  • TRACE-ADT Trace ADT
  • STANDARD-LOAD Standard load
  • CAT-POOR Poor

Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.

Bridge Snapshot: OIL WELL ROAD

The OIL WELL ROAD bridge in Matanuska-Susitna, Alaska carries OIL WELL ROAD over MOOSE CREEK. It was built in 1998, making it 28 years old today. The structure is built primarily of steel and spans 1 section, stretching 19.5 meters (64 feet) end to end. Daily traffic averages 10 vehicles, placing it in the lower-traffic tier of Alaska bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 6/9, 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.

How OIL WELL ROAD compares

▼ 3.0
Load rating vs Alaska average (38.2 t; 1,679 of 1,685 rated)
120
Bridges in Matanuska-Susitna · 7 in Poor condition

Age against the county: built in 1998, earlier than 61 of Matanuska-Susitna's 120 bridges with a recorded construction year (51%), against a county median build year of 1999. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.

OIL WELL ROAD 35.2 t
Alaska average (1,679 of 1,685 rated) 38.2 t

Live comparison across Alaska bridges with a recorded inventory load rating (1,679 of 1,685 rated).

OIL WELL ROAD vs every rated Alaska bridge

Inventory load rating (metric tons), FHWA NBI, this state

35 Top 48% higher than 52% of 1,679 bridges

rated Alaska bridges, bucketed by value

Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source FHWA National Bridge Inventory · August 2026

Condition Ratings

Deck
6/9
Fair (5–6)
Superstructure
5/9
Fair (5–6)
Substructure
4/9
Poor (1–4)
Inventory Load Rating
35.2 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.

Matanuska-Susitna inventory by recorded NBI category

Exclusive Good/Fair/Poor bands across all 120 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.

Structural Details

Year Built
1998
Material
Steel
Number of Spans
1
Structure Length
19.5 m (64 ft)
Deck Width
11.0 m (36 ft)
Owner
County Highway Agency
Avg Daily Traffic
10 vehicles/day
Structure Number
1985

Condition Analysis

  • At 6/9, 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.
  • The substructure (piers and abutments) rates poor at 4/9, with advanced deterioration recorded on the latest inspection.

How to read this record

OIL WELL ROAD 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 OIL WELL ROAD against other structures in Matanuska-Susitna 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 OIL WELL ROAD?

OIL WELL ROAD in Matanuska-Susitna, Alaska has a deck rating of 6/9, superstructure rating of 5/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.

How often is OIL WELL ROAD inspected?

OIL WELL ROAD'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 10 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. OIL WELL ROAD 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 OIL WELL ROAD?

OIL WELL ROAD has an NBI inventory load rating of 35.2 metric tons.

Who is responsible for maintaining OIL WELL ROAD?

OIL WELL ROAD is owned and maintained by County Highway Agency.

How old is OIL WELL ROAD and does age affect safety?

OIL WELL ROAD was built in 1998, making it 28 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

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Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.

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Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.