SOUTH WATERSIDE DR
Carrying SOUTH WATERSIDE DR over ROCK CREEK PARKWAY (NB)
0.4 MILES FROM P STREET., District of Columbia, District of Columbia
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: SOUTH WATERSIDE DR
The SOUTH WATERSIDE DR bridge in District of Columbia, District of Columbia carries SOUTH WATERSIDE DR over ROCK CREEK PARKWAY (NB). It was built in 1940, making it 86 years old today. The structure is built primarily of concrete and spans 1 section, stretching 25.9 meters (85 feet) end to end. Daily traffic averages 15,152 vehicles, placing it in the heavily-trafficked tier of District of Columbia bridges. It is owned and maintained by National Park Service.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 6/9, substructure at 7/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 22.7 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How SOUTH WATERSIDE DR compares
Live comparison across District of Columbia.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1940
- Material
- Concrete
- Number of Spans
- 1
- Structure Length
- 25.9 m (85 ft)
- Deck Width
- 12.0 m (39 ft)
- Owner
- National Park Service
- Avg Daily Traffic
- 15,152 vehicles/day
- Structure Number
- 3450034P0000000
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • At 7/9, the deck (driving surface) is in good shape and shows no significant wear.
- • The superstructure (beams and supports above the deck) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
- • At 7/9, the substructure (piers and abutments) is in good shape and shows no significant wear.
How to read this record
This page shows what the last federal inspection recorded, not whether SOUTH WATERSIDE DR 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 SOUTH WATERSIDE DR against other structures in District of Columbia and across District of Columbia. District of Columbia 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 SOUTH WATERSIDE DR?
SOUTH WATERSIDE DR in District of Columbia, District of Columbia has a deck rating of 7/9, superstructure rating of 6/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is SOUTH WATERSIDE DR inspected?
SOUTH WATERSIDE DR'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 15,152 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. SOUTH WATERSIDE DR 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 SOUTH WATERSIDE DR?
SOUTH WATERSIDE DR has an NBI inventory load rating of 22.7 metric tons.
Who is responsible for maintaining SOUTH WATERSIDE DR?
SOUTH WATERSIDE DR is owned and maintained by National Park Service.
How old is SOUTH WATERSIDE DR and does age affect safety?
SOUTH WATERSIDE DR was built in 1940, making it 86 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.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.