ZOO SERVICE ROAD
Carrying ZOO SERVICE ROAD over ROCK CREEK
OFF VALLEY TRAIL BY AMAZO, District of Columbia, District of Columbia
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: ZOO SERVICE ROAD
The ZOO SERVICE ROAD bridge in District of Columbia, District of Columbia carries ZOO SERVICE ROAD over ROCK CREEK. It was built in 1930, making it 96 years old today. The structure is built primarily of concrete and spans 1 section, stretching 24.1 meters (79 feet) end to end. Daily traffic averages 400 vehicles, placing it in the lower-traffic tier of District of Columbia bridges.
The latest FHWA inspection records show superstructure at 7/9, substructure at 7/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 29.9 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How ZOO SERVICE ROAD 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 How the historical reference is calculated.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
- 1930
- Material
- Concrete
- Number of Spans
- 1
- Structure Length
- 24.1 m (79 ft)
- Deck Width
- 12.0 m (39 ft)
- Avg Daily Traffic
- 400 vehicles/day
- Structure Number
- 2180001S0000000
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The superstructure (beams and supports above the deck) rates good at 7/9, with no significant deterioration on file.
- • The substructure (piers and abutments) rates good at 7/9, with no significant deterioration on file.
How to read this record
This page shows what the last federal inspection recorded, not whether ZOO SERVICE ROAD 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 ZOO SERVICE ROAD 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 ZOO SERVICE ROAD?
ZOO SERVICE ROAD in District of Columbia, District of Columbia, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is ZOO SERVICE ROAD inspected?
ZOO SERVICE 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 400 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. ZOO SERVICE ROAD 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 ZOO SERVICE ROAD?
ZOO SERVICE ROAD has an NBI inventory load rating of 29.9 metric tons.
Who is responsible for maintaining ZOO SERVICE ROAD?
Ownership is not specified for ZOO SERVICE ROAD in the NBI.
How old is ZOO SERVICE ROAD and does age affect safety?
ZOO SERVICE ROAD was built in 1930, making it 96 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.