TRIPHAMMER RD T315
Carrying TRIPHAMMER RD T315 over PINEY FORK
PF01 PINEY FORK # 1, Allegheny, Pennsylvania
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
TRIPHAMMER RD T315 in Allegheny, Pennsylvania sits above 27% of rated Pennsylvania bridges on inventory load rating (33 t), while its 1902 build year is earlier than 97% of Allegheny's recorded-year cohort (1,294 bridges).
TRIPHAMMER RD T315 in Allegheny, Pennsylvania is rated Fair in the FHWA's 2024 National Bridge Inventory. Built in 1902, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 5. The lowest applicable rating sets the federal condition category, so this Fair 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 PA:000000000002360
PRE-1950 · MAT-OTHER · SINGLE-SPAN · SUB-LED · LOCAL-ADT · STANDARD-LOAD · CAT-FAIR
- PRE-1950 Pre-1950
- MAT-OTHER Other
- SINGLE-SPAN Single span
- SUB-LED Substructure-led
- LOCAL-ADT Local ADT
- STANDARD-LOAD Standard load
- CAT-FAIR Fair
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: TRIPHAMMER RD T315
The TRIPHAMMER RD T315 bridge in Allegheny, Pennsylvania carries TRIPHAMMER RD T315 over PINEY FORK. It was built in 1902, making it 124 years old today. It was last reconstructed in 2014, extending its service life. The structure is built primarily of masonry and spans 1 section, stretching 9.1 meters (30 feet) end to end. Daily traffic averages 803 vehicles, placing it in the lower-traffic tier of Pennsylvania bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 6/9, substructure at 5/9. The weakest component sits in fair condition. All reported major components score above the Poor range.
How TRIPHAMMER RD T315 compares
Age against the county: built in 1902, earlier than 1,253 of Allegheny's 1,294 bridges with a recorded construction year (97%), against a county median build year of 1968. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Pennsylvania bridges with a recorded inventory load rating (23,297 of 23,299 rated).
TRIPHAMMER RD T315 vs every rated Pennsylvania bridge
Inventory load rating (metric tons), FHWA NBI, this state
33 Top 73% higher than 27% of 23,297 bridges
rated Pennsylvania 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
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.
Allegheny inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 1,294 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
- 1902
- Last Reconstructed
- 2014
- Material
- Masonry
- Number of Spans
- 1
- Structure Length
- 9.1 m (30 ft)
- Deck Width
- 6.7 m (22 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 803 vehicles/day
- Structure Number
- 000000000002360
Condition Analysis
- • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
- • At 6/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
- • At 5/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether TRIPHAMMER RD T315 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 TRIPHAMMER RD T315 against other structures in Allegheny 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 TRIPHAMMER RD T315?
TRIPHAMMER RD T315 in Allegheny, Pennsylvania has a deck rating of 7/9, superstructure rating of 6/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.
How often is TRIPHAMMER RD T315 inspected?
TRIPHAMMER RD T315'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 803 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. TRIPHAMMER RD T315 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 TRIPHAMMER RD T315?
TRIPHAMMER RD T315 has an NBI inventory load rating of 32.7 metric tons.
Who is responsible for maintaining TRIPHAMMER RD T315?
TRIPHAMMER RD T315 is owned and maintained by County Highway Agency.
How old is TRIPHAMMER RD T315 and does age affect safety?
TRIPHAMMER RD T315 was built in 1902, making it 124 years old and last reconstructed in 2014.
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.
Share this inspection record
Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.
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.