COLISEUM-N880 ONRP
Carrying COLISEUM-N880 ONRP over DAMON SLOUGH
04-ALA-880-26.53-OAK, Alameda, California
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: COLISEUM-N880 ONRP
The COLISEUM-N880 ONRP bridge in Alameda, California carries COLISEUM-N880 ONRP over DAMON SLOUGH. It was built in 1968, making it 58 years old today. The structure is built primarily of concrete continuous and spans 7 sections, stretching 52.1 meters (171 feet) end to end. Daily traffic averages 1,250 vehicles, placing it in the moderately-trafficked tier of California bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show a deck rating of 7/9, 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 33.7 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How COLISEUM-N880 ONRP compares
Live comparison across California.
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 How the historical reference is calculated.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
- 1968
- Material
- Concrete Continuous
- Number of Spans
- 7
- Structure Length
- 52.1 m (171 ft)
- Deck Width
- 10.4 m (34 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 1,250 vehicles/day
- Structure Number
- 33 0142S
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) rates good at 7/9, with no significant deterioration on file.
- • The superstructure (beams and supports above the deck) rates good at 7/9, with no significant deterioration on file.
- • 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 COLISEUM-N880 ONRP 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 COLISEUM-N880 ONRP against other structures in Alameda and across California. California 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 COLISEUM-N880 ONRP?
COLISEUM-N880 ONRP in Alameda, California has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is COLISEUM-N880 ONRP inspected?
COLISEUM-N880 ONRP'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 1,250 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. COLISEUM-N880 ONRP 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 COLISEUM-N880 ONRP?
COLISEUM-N880 ONRP has an NBI inventory load rating of 33.7 metric tons.
Who is responsible for maintaining COLISEUM-N880 ONRP?
COLISEUM-N880 ONRP is owned and maintained by State Highway Agency.
How old is COLISEUM-N880 ONRP and does age affect safety?
COLISEUM-N880 ONRP was built in 1968, making it 58 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.