US Bridges

TR 110 over The Sny

Fair

Pike County, Illinois · 1.25 MI SW Rockport · Structure no. 075319800000000

Built
1975
50 years old
Condition
Fair
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
94 ft
3 main spans
Daily traffic
225
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 110 over The Sny is a prestressed concrete box beam or girders - multiple carrying TR 110 over The Sny in Pike County, Illinois. It was built in 1975, so it is 50 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.

It carries about 225 vehicles a day, roughly 16% of them trucks, projected to reach 58 by 2046. The structure is 94 ft (28.7 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesTR 110
CrossesThe Sny
Location1.25 MI SW Rockport
RouteCounty Highway 0
Coordinates39.52404, -91.03972
Functional classRural Minor 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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating56.8 US tons
Inventory rating34.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 15
Structure length94 ft (28.7 m)
Longest span31 ft (9.4 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic225 (2023)
Projected traffic58 by 2046
Trucks16%
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

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 110 over The Sny built?

It was built in 1975, making it 50 years old in 2025.

What condition is TR 110 over The Sny 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 April 2024.

How much traffic does TR 110 over The Sny carry?

About 225 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is TR 110 over The Sny?

The structure is 94 ft (28.7 m) long with a longest span of 31 ft (9.4 m) and a deck 24 ft wide.

Who owns TR 110 over The Sny?

It is owned by the Town or Township Highway Agency.