US Bridges

The Alameda over Chinquapin Run

Fair

Baltimore city, Maryland · 0.7 MI N of Coldspring LA · Structure no. 200000BC3256020

Built
1950
75 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
20 ft
Daily traffic
9,575
2012 count
Owner
City
City or Municipal Highway Agency

About this bridge

The Alameda over Chinquapin Run is a concrete culvert carrying The Alameda over Chinquapin Run in Baltimore city, Maryland. It was built in 1950, so it is 75 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 9,575 vehicles a day, roughly 5% of them trucks, projected to reach 11,340 by 2029. The structure is 20 ft (6.1 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesThe Alameda
CrossesChinquapin Run
Location0.7 MI N of Coldspring LA
RouteCity Street 467
CountyBaltimore city
StateMaryland
Coordinates39.35651, -76.59596
Functional classUrban Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans0
Design loadH 20
Structure length20 ft (6.1 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 traffic9,575 (2012)
Projected traffic11,340 by 2029
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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$33,000
NavigationNo navigation control on waterway

Frequently asked questions

When was The Alameda over Chinquapin Run built?

It was built in 1950, making it 75 years old in 2025.

What condition is The Alameda over Chinquapin 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 October 2024.

How much traffic does The Alameda over Chinquapin Run carry?

About 9,575 vehicles per day (2012 count), of which roughly 5% are trucks.

How long is The Alameda over Chinquapin Run?

The structure is 20 ft (6.1 m) long with a longest span of 10 ft (3 m).

Who owns The Alameda over Chinquapin Run?

It is owned by the City or Municipal Highway Agency.