FHWA NBI 2024 Inspection record Public-domain dataset

SR 1001

Carrying SR 1001 over BRANCH HONEY CREEK

NAGINEY, Mifflin, Pennsylvania

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
49 t Inventory load rating

Bridge Snapshot: SR 1001

The SR 1001 bridge in Mifflin, Pennsylvania carries SR 1001 over BRANCH HONEY CREEK. It was built in 1955, making it 71 years old today. The structure is built primarily of concrete and spans 1 section, stretching 6.4 meters (21 feet) end to end. Daily traffic averages 795 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 7/9, superstructure at 7/9, substructure at 5/9. 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 49.0 metric tons.

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

How SR 1001 compares

▲ 9.7
Load rating vs Pennsylvania average (39.3 t)
Top 17%
Higher load rating than 83% of Pennsylvania bridges
129
Bridges in Mifflin · 9 in Poor condition
SR 1001 49.0 t
Pennsylvania average 39.3 t

Live comparison across Pennsylvania.

Historical Sufficiency Rating

PlainBridge-computed
86.4 / 100 - historical 80–100 band
Structural adequacy /55
45.0
Serviceability /30
28.0
Essentiality /15
14.4
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 How the historical reference is calculated.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
7/9
Good (7–9)
Superstructure
7/9
Good (7–9)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
49.0 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1955
Material
Concrete
Number of Spans
1
Structure Length
6.4 m (21 ft)
Deck Width
11.5 m (38 ft)
Owner
State Highway Agency
Avg Daily Traffic
795 vehicles/day
Structure Number
000000000026471

Condition Analysis

  • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
  • The superstructure (beams and supports above the deck) rates good at 7/9, with no significant deterioration on file.
  • At 5/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.

How to read this record

This page shows what the last federal inspection recorded, not whether SR 1001 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 SR 1001 against other structures in Mifflin 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 1001?

SR 1001 in Mifflin, Pennsylvania has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is SR 1001 inspected?

SR 1001'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 795 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. SR 1001 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 SR 1001?

SR 1001 has an NBI inventory load rating of 49.0 metric tons.

Who is responsible for maintaining SR 1001?

SR 1001 is owned and maintained by State Highway Agency.

How old is SR 1001 and does age affect safety?

SR 1001 was built in 1955, making it 71 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.