US Bridges

Md 978A over Collington Branch

FairPosted for load

Prince George's County, Maryland · 0.18 Mile West of Md 214 · Structure no. 100000160048010

Built
1929
96 years old
Condition
Fair
inspected November 2023
Type
Slab
Concrete
Length
37 ft
2 main spans
Daily traffic
2,180
2009 count
Owner
State
State Highway Agency

About this bridge

Md 978A over Collington Branch is a concrete slab carrying Md 978A over Collington Branch in Prince George's County, Maryland. It was built in 1929, so it is 96 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. Its operating status is: posted for load restriction.

It carries about 2,180 vehicles a day, roughly 8% of them trucks, projected to reach 2,294 by 2026. The structure is 37 ft (11.3 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesMd 978A
CrossesCollington Branch
Location0.18 Mile West of Md 214
RouteState Highway 978A
CountyPrince George's County
StateMaryland
Coordinates38.90206, -76.73492
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating35.5 US tons
Inventory rating21.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length37 ft (11.3 m)
Longest span16 ft (4.9 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,180 (2009)
Projected traffic2,294 by 2026
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$64,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Md 978A over Collington Branch built?

It was built in 1929, making it 96 years old in 2025.

What condition is Md 978A over Collington Branch 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 November 2023.

How much traffic does Md 978A over Collington Branch carry?

About 2,180 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 978A over Collington Branch?

The structure is 37 ft (11.3 m) long with a longest span of 16 ft (4.9 m) and a deck 26 ft wide.

Who owns Md 978A over Collington Branch?

It is owned by the State Highway Agency.