US 1 TOWER HILL RD
Carrying US 1 TOWER HILL RD over ANNAQUATUCKET RIVER
1.2 Mi N of JCT RI 4, Washington, Rhode Island
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
US 1 TOWER HILL RD in Washington, Rhode Island is rated Good in the FHWA's 2024 National Bridge Inventory.
Built in 1917, it carries 1 rated component on the inspecting agency's 0-9 scale, and its weakest reported component scores 7. The lowest applicable rating sets the federal condition category, so this Good 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 RI:000000000000180
PRE-1950 · CONCRETE · MULTI-SPAN · CULVERT-LED · HEAVY-ADT · HEAVY-LOAD · CAT-GOOD
- PRE-1950 Pre-1950
- CONCRETE Concrete
- MULTI-SPAN 2 spans
- CULVERT-LED Culvert-led
- HEAVY-ADT Heavy ADT
- HEAVY-LOAD Heavy load
- CAT-GOOD Good
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: US 1 TOWER HILL RD
The US 1 TOWER HILL RD bridge in Washington, Rhode Island carries US 1 TOWER HILL RD over ANNAQUATUCKET RIVER. It was built in 1917, making it 109 years old today. It was last reconstructed in 1975, extending its service life. The structure is built primarily of concrete and spans 2 sections, stretching 7.4 meters (24 feet) end to end. Daily traffic averages 10,438 vehicles, placing it in the heavily-trafficked tier of Rhode Island bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show culvert at 7/9. The weakest component sits in good condition. No reported major component scores in the Poor range under the current federal condition thresholds.
How US 1 TOWER HILL RD compares
Age against the county: built in 1917, earlier than 136 of Washington's 145 bridges with a recorded construction year (94%), against a county median build year of 1968. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Rhode Island bridges with a recorded inventory load rating (783 rated).
US 1 TOWER HILL RD vs every rated Rhode Island bridge
Inventory load rating (metric tons), FHWA NBI, this state
97 Top 5% higher than 95% of 783 bridges
rated Rhode Island 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.
Washington inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 145 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
- 1917
- Last Reconstructed
- 1975
- Material
- Concrete
- Number of Spans
- 2
- Structure Length
- 7.4 m (24 ft) 0
- Owner
- State Highway Agency
- Avg Daily Traffic
- 10,438 vehicles/day
- Structure Number
- 000000000000180
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 US 1 TOWER HILL 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 US 1 TOWER HILL RD against other structures in Washington and across Rhode Island. Rhode Island 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 US 1 TOWER HILL RD?
US 1 TOWER HILL RD in Washington, Rhode Island on the FHWA's 0–9 scale.
How often is US 1 TOWER HILL RD inspected?
US 1 TOWER HILL 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 10,438 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. US 1 TOWER HILL RD 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 US 1 TOWER HILL RD?
US 1 TOWER HILL RD has an NBI inventory load rating of 97.2 metric tons.
Who is responsible for maintaining US 1 TOWER HILL RD?
US 1 TOWER HILL RD is owned and maintained by State Highway Agency.
How old is US 1 TOWER HILL RD and does age affect safety?
US 1 TOWER HILL RD was built in 1917, making it 109 years old and last reconstructed in 1975.
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.