US Bridges

HWY Dilla ST over Water Louisa Lake Otlt

Fair

Worcester County, Massachusetts · 0.1 MI E of Purchase ST · Structure no. M210151EFMUNNBI

Built
1980
45 years old
Condition
Fair
inspected November 2024
Type
Slab
Prestressed Concrete
Length
26 ft
1 main span
Daily traffic
10,991
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

HWY Dilla ST over Water Louisa Lake Otlt is a prestressed concrete slab carrying HWY Dilla ST over Water Louisa Lake Otlt in Worcester County, Massachusetts. It was built in 1980, so it is 45 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 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 10,991 vehicles a day, roughly 7% of them trucks, projected to reach 51,738 by 2031. The structure is 26 ft (7.9 m) long and 47 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesHWY Dilla ST
CrossesWater Louisa Lake Otlt
Location0.1 MI E of Purchase ST
RouteCity Street 0
Coordinates42.15581, -71.52062
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 2024
Inspection intervalevery 24 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.3 US tons
Inventory rating22.9 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadH 20
Structure length26 ft (7.9 m)
Longest span23 ft (7 m)
Deck width47 ft (14.3 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,991 (2023)
Projected traffic51,738 by 2031
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.1 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Dilla ST over Water Louisa Lake Otlt built?

It was built in 1980, making it 45 years old in 2025.

What condition is HWY Dilla ST over Water Louisa Lake Otlt 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 2024.

How much traffic does HWY Dilla ST over Water Louisa Lake Otlt carry?

About 10,991 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is HWY Dilla ST over Water Louisa Lake Otlt?

The structure is 26 ft (7.9 m) long with a longest span of 23 ft (7 m) and a deck 47 ft wide.

Who owns HWY Dilla ST over Water Louisa Lake Otlt?

It is owned by the Town or Township Highway Agency.