US Bridges

Md 313 over Chester River

Fair

Queen Anne's County, Maryland · On Kent CO Line · Structure no. 100000170030010

Built
1961
64 years old, rebuilt 2014
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
187 ft
3 main spans
Daily traffic
1,964
2013 count
Owner
State
State Highway Agency

About this bridge

Md 313 over Chester River is a steel stringer/multi-beam or girder carrying Md 313 over Chester River in Queen Anne's County, Maryland. It was built in 1961 and reconstructed in 2014, so it is 64 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 1,964 vehicles a day, roughly 11% of them trucks, projected to reach 2,850 by 2030. The structure is 187 ft (57 m) long and 44 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesMd 313
CrossesChester River
LocationOn Kent CO Line
RouteState Highway 313
CountyQueen Anne's County
StateMaryland
Coordinates39.25659, -75.83944
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.4 US tons
Inventory rating44.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length187 ft (57 m)
Longest span61 ft (18.6 m)
Deck width44 ft (13.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,964 (2013)
Projected traffic2,850 by 2030
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$468,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Md 313 over Chester River built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2014.

What condition is Md 313 over Chester River 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 2025.

How much traffic does Md 313 over Chester River carry?

About 1,964 vehicles per day (2013 count), of which roughly 11% are trucks.

How long is Md 313 over Chester River?

The structure is 187 ft (57 m) long with a longest span of 61 ft (18.6 m) and a deck 44 ft wide.

Who owns Md 313 over Chester River?

It is owned by the State Highway Agency.