LOCK AND DAM RD
Carrying LOCK AND DAM RD over FOSCUE CREEK
0.35 MI W OF FOSCUE PARK, Marengo, Alabama
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
LOCK AND DAM RD in Marengo, Alabama sits above 45% of rated Alabama bridges on inventory load rating (33 t), while its 1950 build year is earlier than 90% of Marengo's recorded-year cohort (203 bridges).
LOCK AND DAM RD in Marengo, Alabama is rated Fair 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 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 AL:003636
INTERSTATE-ERA · CONCRETE · SINGLE-SPAN · TIED-CTRL · ARTERIAL-ADT · STANDARD-LOAD · CAT-FAIR
- INTERSTATE-ERA 1950–1979
- CONCRETE Concrete
- SINGLE-SPAN Single span
- TIED-CTRL Tied control
- ARTERIAL-ADT Arterial 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: LOCK AND DAM RD
The LOCK AND DAM RD bridge in Marengo, Alabama carries LOCK AND DAM RD over FOSCUE CREEK. It was built in 1950, making it 76 years old today. The structure is built primarily of concrete and spans 1 section, stretching 52.1 meters (171 feet) end to end. Daily traffic averages 2,000 vehicles, placing it in the moderately-trafficked tier of Alabama bridges. It is owned and maintained by City/Municipal Highway Agency.
The latest FHWA inspection records show a deck rating of 5/9, superstructure at 5/9, substructure at 5/9. The weakest component sits in fair condition. None of this bridge's reported major components fall into the Poor condition range.
How LOCK AND DAM RD compares
Age against the county: built in 1950, earlier than 183 of Marengo's 203 bridges with a recorded construction year (90%), against a county median build year of 1988. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Alabama bridges with a recorded inventory load rating (16,191 of 16,205 rated).
LOCK AND DAM RD vs every rated Alabama bridge
Inventory load rating (metric tons), FHWA NBI, this state
33 Top 55% higher than 45% of 16,191 bridges
rated Alabama 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.
Marengo inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 203 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
- Material
- Concrete
- Number of Spans
- 1
- Structure Length
- 52.1 m (171 ft)
- Deck Width
- 8.7 m (29 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 2,000 vehicles/day
- Structure Number
- 003636
Condition Analysis
- • At 5/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
- • At 5/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
- • The substructure (piers and abutments) rates fair at 5/9, minor deterioration that routine maintenance should address.
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 LOCK AND DAM 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 LOCK AND DAM RD against other structures in Marengo and across Alabama. Alabama 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 LOCK AND DAM RD?
LOCK AND DAM RD in Marengo, Alabama has a deck rating of 5/9, superstructure rating of 5/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.
How often is LOCK AND DAM RD inspected?
LOCK AND DAM 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 2,000 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. LOCK AND DAM RD 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 LOCK AND DAM RD?
LOCK AND DAM RD has an NBI inventory load rating of 32.7 metric tons.
Who is responsible for maintaining LOCK AND DAM RD?
LOCK AND DAM RD is owned and maintained by City/Municipal Highway Agency.
How old is LOCK AND DAM RD and does age affect safety?
LOCK AND DAM RD was built in 1950, making it 76 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.
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.