Pennsylvania Route 989
State highway in Beaver County, Pennsylvania, US

Pennsylvania Route 989 (PA 989) is a 15.10-mile-long (24.30 km) state highway in southeastern Beaver County, Pennsylvania. The southern terminus is at PA 65 in Ambridge, and the northern terminus is at PA 68 in Unionville.
Route description
PA 989 begins at an intersection with PA 65 in the borough of Ambridge, heading east on two-lane undivided 8th Street. The route passes through residential areas, turning north onto Duss Avenue. The road passes more homes before heading into a mix of residences and businesses with some industry. PA 989 splits from Duss Avenue by turning east onto 24th Street, running past more residences as it forms the border between Ambridge to the south and Harmony Township to the north. The route fully enters Harmony Township, becoming Breitenstein Road as it winds east through wooded areas with some residences. The road enters the borough of Economy and becomes Ridge Road Extension, curving to the north. PA 989 continues through forested areas of homes as it progresses north through Economy. Farther north, the road heads into a mix of farms and woods, where it makes a curve to the northeast.
This brief starts where responsible research should: with the source description of “Pennsylvania Route 989” as state highway in Beaver County, Pennsylvania, US. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the places & architecture register because the source frames it as state highway in Beaver County, Pennsylvania, US. Its deeper value depends on whether names, dates, institutions and citations support that framing.
The strongest evidence will usually combine a dated visual record with documents produced by the authority responsible for the place. The source revision retrieved here is dated May 27, 2025. The linked authority identifier is Q1645393. None of the 0 selected statements returned an explicit reference.
A single description cannot reconcile every naming convention, rebuilding phase or administrative transfer associated with a place. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Pennsylvania Route 989”, its source revision and the description used here.
- Expand the search: follow Pennsylvania Route 989 primary sources, Pennsylvania Route 989 archive and Pennsylvania research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Pennsylvania Route 989”?
- Which authority defined the place, boundary or structure at the relevant date?
- What physical evidence or contemporary plan supports the description?
Search terms from this dossier
This entry incorporates text from “Pennsylvania Route 989” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.