US Bridges

Sinclair Lane over Herring Run

Fair

Baltimore city, Maryland · 1 MI E Erdman Ave · Structure no. 200000BC4212010

Built
1958
67 years old, rebuilt 1985
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
136 ft
2 main spans
Daily traffic
45,603
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Sinclair Lane over Herring Run is a steel stringer/multi-beam or girder carrying Sinclair Lane over Herring Run in Baltimore city, Maryland. It was built in 1958 and reconstructed in 1985, so it is 67 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 5 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 45,603 vehicles a day, roughly 5% of them trucks, projected to reach 56,869 by 2044. The structure is 136 ft (41.5 m) long and 57 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSinclair Lane
CrossesHerring Run
Location1 MI E Erdman Ave
RouteCity Street 1070
Coordinates39.3181, -76.55491
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating71 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length136 ft (41.5 m)
Longest span66 ft (20.1 m)
Deck width57 ft (17.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45,603 (2024)
Projected traffic56,869 by 2044
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$184,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Sinclair Lane over Herring Run built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1985.

What condition is Sinclair Lane over Herring 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 April 2024.

How much traffic does Sinclair Lane over Herring Run carry?

About 45,603 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Sinclair Lane over Herring Run?

The structure is 136 ft (41.5 m) long with a longest span of 66 ft (20.1 m) and a deck 57 ft wide.

Who owns Sinclair Lane over Herring Run?

It is owned by the City or Municipal Highway Agency.