US Bridges

HWY Walnut ST over RR CSX

Fair

Norfolk County, Massachusetts · .16 KM S of Milton ST · Structure no. D05021372DOT634

Built
1976
49 years old
Condition
Fair
inspected January 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
67 ft
1 main span
Daily traffic
13,100
2024 count
Owner
State
State Highway Agency

About this bridge

HWY Walnut ST over RR CSX is a prestressed concrete box beam or girders - multiple carrying HWY Walnut ST over RR CSX in Norfolk County, Massachusetts. It was built in 1976, so it is 49 years old, younger than the Massachusetts average of 63.8 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 13,100 vehicles a day, roughly 6% of them trucks, projected to reach 16,109 by 2033. The structure is 67 ft (20.3 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesHWY Walnut ST
CrossesRR CSX
Location.16 KM S of Milton ST
RouteCity Street 0
CountyNorfolk County
StateMassachusetts
Coordinates42.24486, -71.15513
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment7: Better than present minimum criteria
Operating rating61.1 US tons
Inventory rating28.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadH 20
Structure length67 ft (20.3 m)
Longest span61 ft (18.6 m)
Deck width42 ft (12.8 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,100 (2024)
Projected traffic16,109 by 2033
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
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 statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.6 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Walnut ST over RR CSX built?

It was built in 1976, making it 49 years old in 2025.

What condition is HWY Walnut ST over RR CSX 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 HWY Walnut ST over RR CSX carry?

About 13,100 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is HWY Walnut ST over RR CSX?

The structure is 67 ft (20.3 m) long with a longest span of 61 ft (18.6 m) and a deck 42 ft wide.

Who owns HWY Walnut ST over RR CSX?

It is owned by the State Highway Agency.