US Bridges

US 1 over Whitemarsh Run

Fair

Baltimore County, Maryland · 0.24 MI N of Md 43 · Structure no. 100000030287030

Built
1971
54 years old
Condition
Fair
inspected March 2024
Type
Culvert
Steel
Length
36 ft
Daily traffic
35,092
2009 count
Owner
State
State Highway Agency

About this bridge

US 1 over Whitemarsh Run is a steel culvert carrying US 1 over Whitemarsh Run in Baltimore County, Maryland. It was built in 1971, so it is 54 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 35,092 vehicles a day, roughly 8% of them trucks, projected to reach 38,755 by 2026. The structure is 36 ft (11.1 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesUS 1
CrossesWhitemarsh Run
Location0.24 MI N of Md 43
RouteU.S. Route 1
Coordinates39.3818, -76.5009
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 inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans0
Design loadHS 20
Structure length36 ft (11.1 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35,092 (2009)
Projected traffic38,755 by 2026
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Whitemarsh Run built?

It was built in 1971, making it 54 years old in 2025.

What condition is US 1 over Whitemarsh 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 March 2024.

How much traffic does US 1 over Whitemarsh Run carry?

About 35,092 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is US 1 over Whitemarsh Run?

The structure is 36 ft (11.1 m) long with a longest span of 10 ft (3 m).

Who owns US 1 over Whitemarsh Run?

It is owned by the State Highway Agency.