US Bridges

TR 285 over Horse

Fair

Sangamon County, Illinois · 2.5 MI SE Rochester · Structure no. 084313600000000

Built
1972
53 years old
Condition
Fair
inspected March 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
239 ft
4 main spans
Daily traffic
550
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 285 over Horse is a prestressed concrete box beam or girders - multiple carrying TR 285 over Horse in Sangamon County, Illinois. It was built in 1972, so it is 53 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 550 vehicles a day, roughly 2% of them trucks, projected to reach 758 by 2046. The structure is 239 ft (72.8 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesTR 285
CrossesHorse
Location2.5 MI SE Rochester
RouteCounty Highway 0
CountySangamon County
StateIllinois
Coordinates39.71466, -89.57667
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating52.5 US tons
Inventory rating31.4 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans4
Design loadHS 15
Structure length239 ft (72.8 m)
Longest span60 ft (18.3 m)
Deck width30 ft (9.2 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic550 (2022)
Projected traffic758 by 2046
Trucks2%
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 285 over Horse built?

It was built in 1972, making it 53 years old in 2025.

What condition is TR 285 over Horse 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 March 2023.

How much traffic does TR 285 over Horse carry?

About 550 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is TR 285 over Horse?

The structure is 239 ft (72.8 m) long with a longest span of 60 ft (18.3 m) and a deck 30 ft wide.

Who owns TR 285 over Horse?

It is owned by the Town or Township Highway Agency.