US Bridges

HWY Wilder ST over RR Bmrr Pan Am

Fair

Middlesex County, Massachusetts · 0.40 KM SE Walker ST · Structure no. L150122N7DOT634

Built
1850
175 years old, rebuilt 1997
Condition
Fair
inspected October 2023
Type
Slab
Prestressed Concrete
Length
41 ft
1 main span
Daily traffic
14,200
2017 count
Owner
State
State Highway Agency

About this bridge

HWY Wilder ST over RR Bmrr Pan Am is a prestressed concrete slab carrying HWY Wilder ST over RR Bmrr Pan Am in Middlesex County, Massachusetts. It was built in 1850 and reconstructed in 1997, so it is 175 years old, older 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 14,200 vehicles a day, roughly 8% of them trucks, projected to reach 20,310 by 2032. The structure is 41 ft (12.6 m) long and 42 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesHWY Wilder ST
CrossesRR Bmrr Pan Am
Location0.40 KM SE Walker ST
RouteCity Street 0
CountyMiddlesex County
StateMassachusetts
Coordinates42.64051, -71.33291
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 inspectionOctober 2023
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 alignment8: Equal to present desirable criteria
Operating rating74.5 US tons
Inventory rating49.5 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length41 ft (12.6 m)
Longest span36 ft (11 m)
Deck width42 ft (12.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,200 (2017)
Projected traffic20,310 by 2032
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.9 mi (3 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1.5 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Wilder ST over RR Bmrr Pan Am built?

It was built in 1850, making it 175 years old in 2025. It was reconstructed in 1997.

What condition is HWY Wilder ST over RR Bmrr Pan Am 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 2023.

How much traffic does HWY Wilder ST over RR Bmrr Pan Am carry?

About 14,200 vehicles per day (2017 count), of which roughly 8% are trucks.

How long is HWY Wilder ST over RR Bmrr Pan Am?

The structure is 41 ft (12.6 m) long with a longest span of 36 ft (11 m) and a deck 42 ft wide.

Who owns HWY Wilder ST over RR Bmrr Pan Am?

It is owned by the State Highway Agency.