US Bridges

TR 14 over Trib Spring Creek

Poor

Iroquois County, Illinois · .2N ILL54 on CH8 · Structure no. 038530300000000

Built
1972
53 years old
Condition
Poor
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
120 ft
3 main spans
Daily traffic
300
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 14 over Trib Spring Creek is a prestressed concrete box beam or girders - multiple carrying TR 14 over Trib Spring Creek in Iroquois 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.

It carries about 300 vehicles a day, roughly 53% of them trucks, projected to reach 253 by 2046. The structure is 120 ft (36.6 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesTR 14
CrossesTrib Spring Creek
Location.2N ILL54 on CH8
RouteCounty Highway 0
Coordinates40.70168, -88.08541
Functional classRural Minor Collector

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating28.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadH 15
Structure length120 ft (36.6 m)
Longest span80 ft (24.4 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2022)
Projected traffic253 by 2046
Trucks53%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 14 over Trib Spring Creek built?

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

What condition is TR 14 over Trib Spring 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 July 2024.

How much traffic does TR 14 over Trib Spring Creek carry?

About 300 vehicles per day (2022 count), of which roughly 53% are trucks.

How long is TR 14 over Trib Spring Creek?

The structure is 120 ft (36.6 m) long with a longest span of 80 ft (24.4 m) and a deck 28 ft wide.

Who owns TR 14 over Trib Spring Creek?

It is owned by the Town or Township Highway Agency.