CLAM LAKE ROAD
Carrying CLAM LAKE ROAD over TEN-MILE CUT/SALT BAYOU
CLAM LAKE ROAD, Jefferson, Texas
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
CLAM LAKE ROAD in Jefferson, Texas sits above 3% of rated Texas bridges on inventory load rating (24 t), while its 1950 build year is earlier than 91% of Jefferson's recorded-year cohort (457 bridges).
CLAM LAKE ROAD in Jefferson, Texas is rated Poor 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 4. The lowest applicable rating sets the federal condition category, so this Poor 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 TX:000021525-00012
INTERSTATE-ERA · TIMBER · LONG-SPAN-RUN · SUB-LED · LOCAL-ADT · STANDARD-LOAD · CAT-POOR
- INTERSTATE-ERA 1950–1979
- TIMBER Wood or timber
- LONG-SPAN-RUN 14 spans
- SUB-LED Substructure-led
- LOCAL-ADT Local ADT
- STANDARD-LOAD Standard load
- CAT-POOR Poor
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: CLAM LAKE ROAD
The CLAM LAKE ROAD bridge in Jefferson, Texas carries CLAM LAKE ROAD over TEN-MILE CUT/SALT BAYOU. It was built in 1950, making it 76 years old today. It was last reconstructed in 2007, extending its service life. The structure is built primarily of wood or timber and spans 14 sections, stretching 45.4 meters (149 feet) end to end. Daily traffic averages 80 vehicles, placing it in the lower-traffic tier of Texas bridges. It is owned and maintained by Bureau of Fish and Wildlife.
The latest FHWA inspection records show a deck rating of 6/9, superstructure at 7/9, substructure at 4/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed.
How CLAM LAKE ROAD compares
Age against the county: built in 1950, earlier than 418 of Jefferson's 457 bridges with a recorded construction year (91%), against a county median build year of 1971. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Texas bridges with a recorded inventory load rating (56,715 of 56,729 rated).
CLAM LAKE ROAD vs every rated Texas bridge
Inventory load rating (metric tons), FHWA NBI, this state
24 Top 97% higher than 3% of 56,715 bridges
rated Texas 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.
Jefferson inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 457 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
- 2007
- Material
- Wood or Timber
- Number of Spans
- 14
- Structure Length
- 45.4 m (149 ft)
- Deck Width
- 4.5 m (15 ft)
- Owner
- Bureau of Fish and Wildlife
- Avg Daily Traffic
- 80 vehicles/day
- Structure Number
- 000021525-00012
Condition Analysis
- • The deck (driving surface) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
- • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
- • The substructure (piers and abutments) rates poor at 4/9, with advanced deterioration recorded on the latest inspection.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
CLAM LAKE ROAD 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 CLAM LAKE ROAD against other structures in Jefferson and across Texas. Texas 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 CLAM LAKE ROAD?
CLAM LAKE ROAD in Jefferson, Texas has a deck rating of 6/9, superstructure rating of 7/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.
How often is CLAM LAKE ROAD inspected?
CLAM LAKE ROAD'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 80 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. CLAM LAKE ROAD 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 CLAM LAKE ROAD?
CLAM LAKE ROAD has an NBI inventory load rating of 23.6 metric tons.
Who is responsible for maintaining CLAM LAKE ROAD?
CLAM LAKE ROAD is owned and maintained by Bureau of Fish and Wildlife.
How old is CLAM LAKE ROAD and does age affect safety?
CLAM LAKE ROAD was built in 1950, making it 76 years old and last reconstructed in 2007.
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.