Delaware Route 300
state highway in Kent County, Delaware, United States

Delaware Route 300 (DE 300) is an 11.83-mile-long (19.04 km) state highway in Kent County, Delaware. The route is a continuation of Maryland Route 300 (MD 300) from the Maryland border near Everetts Corner. It runs in a northeast direction from there to the town of Smyrna, where it ends at U.S. Route 13 (US 13) while concurrent with DE 6. The route is signed east-west. Along the way, DE 300 passes through rural areas of northern Kent County as well as the towns of Kenton and Clayton. The road intersects DE 44 at Everetts Corner, DE 11 southwest of Kenton, DE 42 in Kenton, DE 15 between Kenton and Clayton, and DE 6 in Smyrna. The road was first built as a state highway in the 1920s and 1930s between the Maryland border and Clayton, with the DE 300 designation given to the road by 1936. The route was extended to its current terminus in the 1950s.
Route description
DE 300 begins at the Maryland border, where the road continues west into that state as MD 300. From the state line, the route heads east on two-lane undivided Sudlersville Road through agricultural areas and woods with some homes.
“Delaware Route 300” enters the record as state highway in Kent County, Delaware, United States. Crown Archives preserves that source wording while asking what Delaware, Route and state can confirm, complicate or overturn.
Why this record matters
“Delaware Route 300” is worth following because a concise public description often conceals a longer documentary argument. Here, Delaware, Route and state provides the most credible route into that argument.
Place names and jurisdictional language are key evidence: both can reveal earlier catalogue descriptions and overlooked record series. The source revision retrieved here is dated May 3, 2025. The linked authority identifier is Q798927. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1936.
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 “Delaware Route 300”, its source revision and the description used here.
- Expand the search: follow Delaware Route 300 primary sources, Delaware Route 300 archive and Delaware 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 “Delaware Route 300”?
- What physical evidence or contemporary plan supports the description?
- Which earlier names or jurisdictions may reveal additional records?
Search terms from this dossier
This entry incorporates text from “Delaware Route 300” 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.