US Bridges

Md 36 over Jennings Run

Fair

Allegany County, Maryland · 1.83 MI S of Md 47 · Structure no. 100000010007010

Built
1929
96 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
58 ft
2 main spans
Daily traffic
2,290
2009 count
Owner
State
State Highway Agency

About this bridge

Md 36 over Jennings Run is a concrete stringer/multi-beam or girder carrying Md 36 over Jennings Run in Allegany 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.

It carries about 2,290 vehicles a day, roughly 8% of them trucks, projected to reach 3,435 by 2029. The structure is 58 ft (17.7 m) long and 31 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesMd 36
CrossesJennings Run
Location1.83 MI S of Md 47
RouteState Highway 36
CountyAllegany County
StateMaryland
Coordinates39.69709, -78.87441
Functional classUrban Minor 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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 12 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
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59 US tons
Inventory rating35.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length58 ft (17.7 m)
Longest span24 ft (7.3 m)
Deck width31 ft (9.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,290 (2009)
Projected traffic3,435 by 2029
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed29.8 mi (48 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$120,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Md 36 over Jennings Run built?

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

What condition is Md 36 over Jennings 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 January 2024.

How much traffic does Md 36 over Jennings Run carry?

About 2,290 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 36 over Jennings Run?

The structure is 58 ft (17.7 m) long with a longest span of 24 ft (7.3 m) and a deck 31 ft wide.

Who owns Md 36 over Jennings Run?

It is owned by the State Highway Agency.