FHWA NBI 2026 Inspection record Public-domain dataset

ON TSR 323

Carrying ON TSR 323 over BIG FISHING CREEK

LAMAR, Clinton, Pennsylvania

FHWA NBI inspection record for this structure. Condition ratings, inventory load rating, span, deck width, and average daily traffic refresh annually with each NBI release.

Good
44 t Inventory load rating

Bridge Snapshot: ON TSR 323

The ON TSR 323 bridge in Clinton, Pennsylvania carries ON TSR 323 over BIG FISHING CREEK. It was built in 2015, making it 11 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 26.5 meters (87 feet) end to end. Daily traffic averages 728 vehicles, placing it in the lower-traffic tier of Pennsylvania bridges. It is owned and maintained by State Highway Agency, the entity responsible for routine inspections and any needed repairs.

The latest FHWA inspection records show a deck rating of 7/9, superstructure at 8/9, substructure at 8/9 on the 0–9 NBI scale, where 9 is excellent and 0 is failed. The weakest component sits in good condition, which drives the overall status of this bridge. No major component scores in the poor range, so the bridge is not classified as structurally deficient under federal criteria. Its NBI inventory load rating is 43.7 metric tons — the load level the structure is rated to carry at inventory (long-term) level.

In a county that maintains hundreds of NBI-tracked bridges, ON TSR 323 is one data point in a Pennsylvania inventory that FHWA inspects on a two-year cycle (more often when ratings fall). Bridge age alone is not a reliable safety signal — a 11-era structure can outperform a newer one when maintenance is consistent, materials are sound, and traffic loads stay within design limits. Use the condition ratings above, the sufficiency score, and the structurally-deficient flag together to read the bridge's real status, and check the linked county and state pages to see how this bridge ranks against its peers.

Every figure on this page comes directly from the Federal Highway Administration National Bridge Inventory (NBI), the public dataset that catalogs more than 617,000 highway bridges across the United States and is updated annually from the records that each state Department of Transportation submits to the FHWA. The condition codes use the standardized FHWA Recording and Coding Guide, the same scale that determines federal eligibility for the Highway Bridge Program and the Surface Transportation Block Grant set-aside for off-system bridges. A "structurally deficient" classification under those federal criteria is a maintenance and funding flag, never a closure order; states keep deficient bridges open with load posting, weight limits, or accelerated inspection cycles until rehabilitation or replacement is funded. See our methodology for refresh cadence and the exact NBI release vintage powering each record.

How ON TSR 323 compares

▲ 4.4
Load rating vs Pennsylvania average (39.3 t)
Top 28%
Higher load rating than 72% of Pennsylvania bridges
147
Bridges in Clinton · 4 structurally deficient
ON TSR 323 43.7 t
Pennsylvania average 39.3 t

NBI inventory load rating (metric tons) and structural-deficiency status compared across Pennsylvania, computed live from the FHWA NBI.

Condition Ratings

Deck
7/9
Good (7–9)
Superstructure
8/9
Good (7–9)
Substructure
8/9
Good (7–9)
Inventory Load Rating
43.7 t
NBI inventory level (metric tons)
SD Status
Not SD

Ratings are on a 0–9 scale: 9 = Excellent, 7–8 = Good, 5–6 = Fair, 3–4 = Poor, 0–2 = Critical/Failed. Sufficiency rating (0–100) combines structural adequacy, functional obsolescence, and essentiality.

Structural Details

Year Built
2015
Material
Prestressed Concrete
Number of Spans
1
Structure Length
26.5 m (87 ft)
Deck Width
7.7 m (25 ft)
Owner
State Highway Agency
Avg Daily Traffic
728 vehicles/day
Structure Number
000000000052477

Location

LAMAR, Clinton, Pennsylvania
41.007108, -77.533886
View on Google Maps ↗

Data Source

Data from the FHWA National Bridge Inventory (NBI). Bridge inspections are required every two years by federal law. Conditions reflect the most recent inspection.

FHWA NBI Program ↗

Condition Analysis

Built in 2015, this bridge is 11 years old. It carries approximately 728 vehicles per day. Based on the most recent FHWA inspection:

  • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
  • The superstructure (beams and supports above the deck) is in good condition (8/9), showing no significant deterioration.
  • The substructure (piers and abutments) is in good condition (8/9), showing no significant deterioration.

Its NBI inventory load rating reflects the load level it is rated to carry.

Frequently Asked Questions

What do the condition ratings mean for ON TSR 323?

Bridge condition ratings use a 0–9 scale set by the Federal Highway Administration (FHWA). Ratings 7–9 indicate good condition with no significant problems. Ratings 5–6 mean fair condition with minor issues. Ratings 3–4 indicate poor condition requiring repair. Ratings 0–2 are critical, meaning the bridge has serious structural problems. ON TSR 323 in Clinton, Pennsylvania has a deck rating of 7/9, superstructure rating of 8/9, and substructure rating of 8/9.

How often is ON TSR 323 inspected?

Federal law requires most highway bridges to be inspected at least every 24 months. Bridges in poor condition or with known issues may be inspected more frequently (every 12 months or less). ON TSR 323 is part of the National Bridge Inventory maintained by the FHWA. With 728 vehicles crossing daily, regular inspection is essential.

What does "structurally deficient" mean for a bridge?

A structurally deficient bridge has at least one major component (deck, superstructure, or substructure) rated 4 or below on the FHWA 0–9 scale. This classification does NOT mean the bridge is unsafe for travel — it means the bridge needs repair, rehabilitation, or eventual replacement. Structurally deficient bridges remain open and are monitored. ON TSR 323 is not classified as structurally deficient.

What is the inventory load rating for ON TSR 323?

The NBI inventory rating is the load level a bridge is rated to carry for an indefinite period, recorded in metric tons. A lower number means the structure is more load-restricted. ON TSR 323 has an inventory load rating of 43.7 metric tons. It is distinct from the FHWA sufficiency rating, a separate 0–100 funding-eligibility score that this dataset does not include.

Who is responsible for maintaining ON TSR 323?

Bridge ownership and maintenance responsibility varies — bridges may be owned by state DOTs, counties, cities, railroads, or federal agencies. ON TSR 323 is maintained by State Highway Agency. The FHWA oversees the National Bridge Inventory program and sets inspection standards, but day-to-day maintenance falls to the owning agency. If you notice damage or safety concerns, contact your state DOT or call 911 for emergencies.

How old is ON TSR 323 and does age affect safety?

ON TSR 323 was built in 2015, making it 11 years old. Bridge age alone does not determine safety — condition depends on materials, design, traffic load, maintenance history, and environmental exposure. Many older bridges remain in good condition due to regular maintenance and reconstruction.

Disclaimer: Bridge condition data is from the FHWA NBI and reflects the last reported inspection. A structurally deficient rating does not mean a bridge is closed or unsafe for travel — it indicates the bridge requires repair or replacement. For current closure or safety information, contact your state DOT.

Related

Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial