US Bridges

MS-1340 Mayflower over Ravine

Fair

Lake County, Illinois · Mayflower S of Sprng · Structure no. 049685300000000

Built
1970
55 years old, rebuilt 1997
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
284 ft
3 main spans
Daily traffic
550
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

MS-1340 Mayflower over Ravine is a steel continuous stringer/multi-beam or girder carrying MS-1340 Mayflower over Ravine in Lake County, Illinois. It was built in 1970 and reconstructed in 1997, so it is 55 years old, older than the Illinois average of 45.3 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. Its operating status is: open, would be posted or closed except for temporary shoring.

It carries about 550 vehicles a day, roughly 8% of them trucks, projected to reach 581 by 2046. The structure is 284 ft (86.6 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesMS-1340 Mayflower
CrossesRavine
LocationMayflower S of Sprng
RouteCity Street 0
Coordinates42.24973, -87.82284
Functional classUrban Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, would be posted or closed except for temporary shoring
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating0 US tons
Inventory rating0 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+5 approach)
Design loadH 15
Structure length284 ft (86.6 m)
Longest span80 ft (24.4 m)
Deck width33 ft (10 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic550 (2023)
Projected traffic581 by 2046
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was MS-1340 Mayflower over Ravine built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 1997.

What condition is MS-1340 Mayflower over Ravine 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 June 2024.

How much traffic does MS-1340 Mayflower over Ravine carry?

About 550 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is MS-1340 Mayflower over Ravine?

The structure is 284 ft (86.6 m) long with a longest span of 80 ft (24.4 m) and a deck 33 ft wide.

Who owns MS-1340 Mayflower over Ravine?

It is owned by the City or Municipal Highway Agency.