US Bridges

TR 101 over Round Springs Creek

Fair

Hardin County, Illinois · 2 Mi. W Cave-In-Rock · Structure no. 035304800000000

Built
2004
21 years old
Condition
Fair
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
112 ft
3 main spans
Daily traffic
75
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 101 over Round Springs Creek is a prestressed concrete box beam or girders - multiple carrying TR 101 over Round Springs Creek in Hardin County, Illinois. It was built in 2004, so it is 21 years old, younger 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 75 vehicles a day, roughly 13% of them trucks, projected to reach 101 by 2046. The structure is 112 ft (34 m) long and 24 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesTR 101
CrossesRound Springs Creek
Location2 Mi. W Cave-In-Rock
RouteCounty Highway 0
CountyHardin County
StateIllinois
Coordinates37.46634, -88.20559
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length112 ft (34 m)
Longest span40 ft (12.2 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2023)
Projected traffic101 by 2046
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 101 over Round Springs Creek built?

It was built in 2004, making it 21 years old in 2025.

What condition is TR 101 over Round Springs Creek 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 October 2023.

How much traffic does TR 101 over Round Springs Creek carry?

About 75 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is TR 101 over Round Springs Creek?

The structure is 112 ft (34 m) long with a longest span of 40 ft (12.2 m) and a deck 24 ft wide.

Who owns TR 101 over Round Springs Creek?

It is owned by the Town or Township Highway Agency.