FHWA NBI 2024 Inspection record Public-domain dataset

SR 4008

Carrying SR 4008 over ACKERLY CREEK

GLENBURN TWP JCT TR 6, Lackawanna, Pennsylvania

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
35 t Inventory load rating

Bridge Snapshot: SR 4008

The SR 4008 bridge in Lackawanna, Pennsylvania carries SR 4008 over ACKERLY CREEK. It was built in 1952, making it 74 years old today. The structure is built primarily of steel and spans 1 section, stretching 7.6 meters (25 feet) end to end. Daily traffic averages 248 vehicles, placing it in the lower-traffic tier of Pennsylvania bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show a deck rating of 4/9, superstructure at 5/9, substructure at 4/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules. Its NBI inventory load rating is 34.5 metric tons.

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

How SR 4008 compares

▼ 4.8
Load rating vs Pennsylvania average (39.3 t)
Bottom 35%
Lower load rating than 65% of Pennsylvania bridges
212
Bridges in Lackawanna · 28 in Poor condition
SR 4008 34.5 t
Pennsylvania average 39.3 t

Live comparison across Pennsylvania.

Historical Sufficiency Rating

PlainBridge-computed
68.9 / 100 - historical 50–79.9 band
Structural adequacy /55
30.0
Serviceability /30
25.0
Essentiality /15
14.9
Special reductions
−1.0

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 How the historical reference is calculated.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
4/9
Poor (1–4)
Superstructure
5/9
Fair (5–6)
Substructure
4/9
Poor (1–4)
Inventory Load Rating
34.5 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1952
Material
Steel
Number of Spans
1
Structure Length
7.6 m (25 ft)
Deck Width
10.8 m (35 ft)
Owner
State Highway Agency
Avg Daily Traffic
248 vehicles/day
Structure Number
000000000020799

Condition Analysis

  • The deck (driving surface) is in poor condition (4/9), showing advanced deterioration that may require priority repair.
  • 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, advanced deterioration that should be prioritized for repair.

How to read this record

SR 4008 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 SR 4008 against other structures in Lackawanna and across Pennsylvania. Pennsylvania 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 SR 4008?

SR 4008 in Lackawanna, Pennsylvania has a deck rating of 4/9, superstructure rating of 5/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.

How often is SR 4008 inspected?

SR 4008'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 248 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. SR 4008 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 SR 4008?

SR 4008 has an NBI inventory load rating of 34.5 metric tons.

Who is responsible for maintaining SR 4008?

SR 4008 is owned and maintained by State Highway Agency.

How old is SR 4008 and does age affect safety?

SR 4008 was built in 1952, making it 74 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.