US Bridges

US 1 over Stemmers Run

Fair

Baltimore County, Maryland · 0.23 Mile South of Is 695 · Structure no. 100000030004020

Built
1960
65 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete
Length
128 ft
Daily traffic
39,242
2009 count
Owner
State
State Highway Agency

About this bridge

US 1 over Stemmers Run is a concrete culvert carrying US 1 over Stemmers Run in Baltimore County, Maryland. It was built in 1960, so it is 65 years old, older than the Maryland average of 52.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 39,242 vehicles a day, roughly 8% of them trucks, projected to reach 45,719 by 2026. The structure is 128 ft (39 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesUS 1
CrossesStemmers Run
Location0.23 Mile South of Is 695
RouteU.S. Route 1
Coordinates39.36713, -76.51658
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans0
Design loadHS 20
Structure length128 ft (39 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic39,242 (2009)
Projected traffic45,719 by 2026
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 1 over Stemmers Run built?

It was built in 1960, making it 65 years old in 2025.

What condition is US 1 over Stemmers Run in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2024.

How much traffic does US 1 over Stemmers Run carry?

About 39,242 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is US 1 over Stemmers Run?

The structure is 128 ft (39 m) long with a longest span of 12 ft (3.7 m).

Who owns US 1 over Stemmers Run?

It is owned by the State Highway Agency.