US Bridges

TR 311 over Fk of Big Meadow Dth

Good

Hancock County, Illinois · 2.2 MI SW Basco · Structure no. 034371900000000

Built
1998
27 years old
Condition
Good
inspected July 2024
Type
Frame
Concrete
Length
44 ft
2 main spans
Daily traffic
50
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 311 over Fk of Big Meadow Dth is a concrete frame carrying TR 311 over Fk of Big Meadow Dth in Hancock County, Illinois. It was built in 1998, so it is 27 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, projected to reach 51 by 2046. The structure is 44 ft (13.4 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesTR 311
CrossesFk of Big Meadow Dth
Location2.2 MI SW Basco
RouteCounty Highway 0
Coordinates40.3139, -91.24176
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span20 ft (6.1 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic51 by 2046
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 TR 311 over Fk of Big Meadow Dth built?

It was built in 1998, making it 27 years old in 2025.

What condition is TR 311 over Fk of Big Meadow Dth in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does TR 311 over Fk of Big Meadow Dth carry?

About 50 vehicles per day (2023 count).

How long is TR 311 over Fk of Big Meadow Dth?

The structure is 44 ft (13.4 m) long with a longest span of 20 ft (6.1 m) and a deck 24 ft wide.

Who owns TR 311 over Fk of Big Meadow Dth?

It is owned by the Town or Township Highway Agency.