T-428 Milford Rd
Carrying T-428 Milford Rd over PA TPK (I-76)
West of Devault, Chester, Pennsylvania
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
T-428 Milford Rd in Chester, Pennsylvania sits above 53% of rated Pennsylvania bridges on inventory load rating (38 t), while its 1950 build year is earlier than 66% of Chester's recorded-year cohort (680 bridges).
T-428 Milford Rd in Chester, Pennsylvania is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 1950, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 8. The lowest applicable rating sets the federal condition category, so this Good 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:000000000057341
INTERSTATE-ERA · PRESTRESS · MULTI-SPAN · TIED-CTRL · LOCAL-ADT · STANDARD-LOAD · CAT-GOOD
- INTERSTATE-ERA 1950–1979
- PRESTRESS Prestressed concrete
- MULTI-SPAN 2 spans
- TIED-CTRL Tied control
- LOCAL-ADT Local ADT
- STANDARD-LOAD Standard load
- CAT-GOOD Good
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: T-428 Milford Rd
The T-428 Milford Rd bridge in Chester, Pennsylvania carries T-428 Milford Rd over PA TPK (I-76). It was built in 1950, making it 76 years old today. It was last reconstructed in 2019, extending its service life. The structure is built primarily of prestressed concrete continuous and spans 2 sections, stretching 50.9 meters (167 feet) end to end. Daily traffic averages 530 vehicles, placing it in the lower-traffic tier of Pennsylvania bridges. It is owned and maintained by State Toll Authority.
The latest FHWA inspection records show a deck rating of 8/9, superstructure at 8/9, substructure at 8/9. The weakest component sits in good condition. All reported major components score above the Poor range.
How T-428 Milford Rd compares
Age against the county: built in 1950, earlier than 452 of Chester's 680 bridges with a recorded construction year (66%), against a county median build year of 1966. 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).
T-428 Milford Rd vs every rated Pennsylvania bridge
Inventory load rating (metric tons), FHWA NBI, this state
38 Top 47% higher than 53% 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.
Chester inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 680 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
- 1950
- Last Reconstructed
- 2019
- Material
- Prestressed Concrete Continuous
- Number of Spans
- 2
- Structure Length
- 50.9 m (167 ft)
- Deck Width
- 11.5 m (38 ft)
- Owner
- State Toll Authority
- Avg Daily Traffic
- 530 vehicles/day
- Structure Number
- 000000000057341
Condition Analysis
- • The deck (driving surface) rates good at 8/9, with no significant deterioration on file.
- • The superstructure (beams and supports above the deck) rates good at 8/9, with no significant deterioration on file.
- • The substructure (piers and abutments) is in good condition (8/9), showing no significant deterioration.
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 T-428 Milford Rd 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 T-428 Milford Rd against other structures in Chester 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 T-428 Milford Rd?
T-428 Milford Rd in Chester, Pennsylvania has a deck rating of 8/9, superstructure rating of 8/9, and substructure rating of 8/9 on the FHWA's 0–9 scale.
How often is T-428 Milford Rd inspected?
T-428 Milford Rd'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 530 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. T-428 Milford Rd is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for T-428 Milford Rd?
T-428 Milford Rd has an NBI inventory load rating of 37.9 metric tons.
Who is responsible for maintaining T-428 Milford Rd?
T-428 Milford Rd is owned and maintained by State Toll Authority.
How old is T-428 Milford Rd and does age affect safety?
T-428 Milford Rd was built in 1950, making it 76 years old and last reconstructed in 2019.
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.