DWI stops on I-40, I-85 and the Durham Freeway: which agency, which court

The roads: I-40, I-85, I-885 and the Durham Freeway

Durham County's route list runs to four interstates, three U.S. routes and six state highways: I-40, I-85, I-540 and I-885; U.S. 15, U.S. 70 and U.S. 501; and NC 54, 55, 98, 147, 157 and 751.

I-40 crosses the south of the county past Research Triangle Park. It splits from I-85 at Exit 163 on the southern edge of Hillsborough, in Orange County, and its Durham County exits run from Exit 270 for U.S. 15 and U.S. 501 toward Chapel Hill and Durham to Exits 280 and 281 for Davis Drive and Miami Boulevard. I-85 runs through the north of the city with U.S. 70. It picks up U.S. 15 and U.S. 501 at a shared interchange, meets the northern end of NC 147 at mile marker 172, and carries the exit for I-885 south and U.S. 70 east toward RDU Airport and Raleigh.

I-885 is the newest road. The East End Connector, a $160-million project begun in 2015, “opened to traffic on June 30, 2022,” joining the Durham Freeway to U.S. 70 and creating an 11.5-mile auxiliary interstate from I-40 in RTP to I-85. NCDOT said the connector was “expected to alleviate congestion on the Durham Freeway and U.S. 15-501 through Durham, and divert traffic from local roads, such as Duke, Gregson, Mangum and Roxboro streets.” The southern half of the old Durham Freeway became I-885 that day. NC 147, the Durham Freeway, is what remains: “an 8.1-mile-long freeway through Durham” that “serves as the primary artery through Downtown Durham” and “passes through Duke University, forming the boundary between East Campus and Central Campus.” Inside the city limits its official name is the Buck Dean Expressway.

Exit list and route descriptions from the Wikipedia articles on I-40, I-85, I-885 and NC 147 in North Carolina and NCDOT's June 30, 2022 press release on the East End Connector. See sources.

The agencies: who makes the stop

No source this guide could find assigns any Durham road to one agency, so the honest answer to “who patrols I-40” is: the Highway Patrol by statute, and any other officer with authority in that spot.

The State Highway Patrol. Durham County sits in Troop C, District VII, which “covers Durham and Granville counties” from 101 S. Miami Blvd., Durham, NC 27703, (919) 560-6868; Troop C headquarters is at 1831 Blue Ridge Road in Raleigh. The Patrol's duty is set by G.S. 143B-1716, recodified from G.S. 20-188 by S.L. 2024-57 effective July 1, 2025: members “shall regularly patrol the highways of the State and enforce all laws and regulations respecting travel,” and they “have the authority throughout the State of North Carolina of any police officer in respect to making arrests for any crimes committed in their presence.”

Durham Police Department. Headquarters and the 24-hour Desk Unit are at 602 E. Main St., Durham, NC 27701; the non-emergency number is 919-560-4600 and the desk officer is 919-560-4427. The department's jurisdiction is the City of Durham, and it ran the October 2015 checkpoint at North Duke Street and Trinity Avenue that produced 11 DWI arrests.

Durham County Sheriff's Office. The Sheriff's Office runs “patrol units, and a team of criminal investigators,” operates the Durham County Detention Facility, and provides courthouse security. Its Traffic Unit led a multi-agency DWI checkpoint on North Duke Street at West Trinity Avenue with help from the Highway Patrol, Durham Tech Police and deputies from Alamance and Granville counties. General inquiries: (919) 560-0897.

Campus police. Duke University Police at 502 Oregon Street has “roughly 70 officers” and covers the academic campus and the health system; NCCU Police at 1801 Fayetteville St. has sworn officers with “full law enforcement authority”; Durham Tech's Campus Police and Public Safety office is at 1637 East Lawson Street. State Alcohol Law Enforcement agents focus on licensed and illegal alcohol establishments and list no Durham office. What a campus arrest means for a driver under 21 is its own page.

Checkpoints: what G.S. 20-16.3A requires

A checking station is legal in North Carolina, but only inside the rules of G.S. 20-16.3A.

• The agency must “operate under a written policy that provides guidelines for the pattern,” though the pattern itself “need not be in writing.”
• Placement “should be random or statistically indicated, and agencies shall avoid placing checkpoints repeatedly in the same location or proximity.”
• The stop pattern “shall not be based on a particular vehicle type, except that the pattern may designate any type of commercial motor vehicle.”
• The public must be told: “at a minimum, one law enforcement vehicle with its blue light in operation.”
• A stopped driver “may be requested to submit to an alcohol screening test” if “during the course of the stop the officer determines the driver had previously consumed alcohol.” Under G.S. 20-16.3 that roadside result is admissible only as positive or negative, “but not the actual alcohol concentration result.”
• Any type of checking station is allowed “as long as it is established and operated in accordance with the provisions of the United States Constitution and the Constitution of North Carolina,” and the placement rule “shall not be grounds for a motion to suppress.”

Durham's recorded checkpoints cluster at one intersection. Durham Police arrested 11 people for DWI at North Duke Street and Trinity Avenue in October 2015, and wrote 13 charges of driving while license revoked, 8 of no operator's license and 3 drug charges. The Sheriff's Office later ran its own multi-agency checkpoint at the same corner after “several citizen complaints”: 103 charges in all, including 29 for no operator's license, 22 for expired registration and 13 misdemeanor drug offenses. The CBS 17 story carries no date on the page; its charge list counts 4 for driving while impaired and 1 for driving after consuming under 21 among the 103. No Durham checkpoint story dated 2024 to 2026 could be found, and the Sheriff's own news pages could not be read, so no recent local count is stated.

The 2026 Booze It & Lose It calendar

The Governor's Highway Safety Program publishes the enforcement windows a year ahead. For Operation Firecracker, NCDOT said “law enforcement will conduct checkpoints and an increased number of patrols through July 5,” and the 2025 Firecracker campaign produced 917 DWI arrests statewide, 77 of them drivers under 21. Durham County's own campaign totals sit in NCDOT spreadsheets this guide could not open.

G.S. 20-16.3A; G.S. 20-16.3(d); GHSP 2026 planning calendar; NCDOT press release of June 29, 2026.

Where the case goes: one court, one jail

Durham County has one district court and one jail, and the agency that made the stop changes neither.

1. The roadside

   The stop needs a lawful reason, the field tests and any roadside screening device follow, and if the officer has probable cause you are arrested for DWI. A driver stopped by a trooper on I-40 at Exit 279 and a driver stopped by a Durham officer on Fayetteville Street are on the same track from here. What happens to the car depends on the facts: under G.S. 20-28.3 an officer seizes the vehicle only when the driver's license was already revoked for a prior impaired-driving revocation, or the driver had no valid license and no liability insurance. This guide could not confirm what Durham agencies do with the car in an ordinary stop.

2. The breath test

   The rights notice under G.S. 20-16.2 is read, two sequential breath samples are taken, and only the lower result can be used. Refusing has its own consequences, on the refusal page.

3. The magistrate at 219 S. Mangum St.

   Every arrested driver goes to the Durham County Detention Facility, where the criminal magistrates sit on the first two levels. The magistrate sets release conditions under Durham's bail policy, enters the 30-day civil revocation and takes the license, and applies the hold rule of G.S. 15A-534.2: release when the driver is no longer impaired or to a sober, responsible adult, and never more than 24 hours. The criminal magistrates' number is (919) 560-6826.

4. Durham County District Court, 510 S. Dillard St.

   The case is filed in Durham County District Court, District 16 since January 1, 2024 (older paperwork says 14). It does not matter that you live in Raleigh, Chapel Hill or another state; the county where you were charged is the county whose court hears the case. The Clerk's Criminal and Traffic division in Room 1300 on the first floor, (919) 808-3002, and the eCourts Portal, live in Durham since April 29, 2024, are the two ways to find the date. How a Durham DWI case moves through district court covers the rest, and a first-offense DWI is sentenced at the same levels wherever the stop happened.

The crash numbers, for context

NCDOT's 2024 Durham County Crash Profile counts 312 alcohol-related crashes in the county in 2024, against a five-year average of 316.6, with 9 people killed and 239 hurt or killed. Those 9 deaths were 26.5% of the county's 34 crash deaths; over 2020 to 2024 the alcohol share of Durham crash deaths averaged 32.0%, against 20.8% statewide in 2024. The county's teen-driver crashes in 2024 numbered 1,361, with 1 death. The profile does not break crashes out by road, so this guide cannot say how many of the 312 were on the interstates. The full ten-year series, the county rankings and the conviction counts are on the numbers page.