US Bridges

TR 302 over Grape Creek

PoorPosted for load

Vermilion County, Illinois · City of Tilton- SW · Structure no. 092327400000000

Built
1972
53 years old
Condition
Poor
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
45 ft
1 main span
Daily traffic
300
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

TR 302 over Grape Creek is a prestressed concrete box beam or girders - multiple carrying TR 302 over Grape Creek in Vermilion 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 300 vehicles a day, roughly 6% of them trucks, projected to reach 303 by 2046. The structure is 45 ft (13.8 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesTR 302
CrossesGrape Creek
LocationCity of Tilton- SW
RouteCity Street 0
Coordinates40.09027, -87.6496
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating38.9 US tons
Inventory rating23.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 15
Structure length45 ft (13.8 m)
Longest span43 ft (13 m)
Deck width27 ft (8.2 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2023)
Projected traffic303 by 2046
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 TR 302 over Grape Creek built?

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

What condition is TR 302 over Grape Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does TR 302 over Grape Creek carry?

About 300 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is TR 302 over Grape Creek?

The structure is 45 ft (13.8 m) long with a longest span of 43 ft (13 m) and a deck 27 ft wide.

Who owns TR 302 over Grape Creek?

It is owned by the City or Municipal Highway Agency.