US Bridges

TR 284 over Trib to Mud Creek

Good

Iroquois County, Illinois · .5 W 1.5 S Milford · Structure no. 038474800000000

Built
1997
28 years old
Condition
Good
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
172 ft
3 main spans
Daily traffic
100
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 284 over Trib to Mud Creek is a prestressed concrete box beam or girders - multiple carrying TR 284 over Trib to Mud Creek in Iroquois County, Illinois. It was built in 1997, so it is 28 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 100 vehicles a day, roughly 30% of them trucks, projected to reach 278 by 2046. The structure is 172 ft (52.4 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesTR 284
CrossesTrib to Mud Creek
Location.5 W 1.5 S Milford
RouteCounty Highway 0
Coordinates40.6074, -87.70389
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length172 ft (52.4 m)
Longest span70 ft (21.4 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic278 by 2046
Trucks30%
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

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 284 over Trib to Mud Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is TR 284 over Trib to Mud Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.

How much traffic does TR 284 over Trib to Mud Creek carry?

About 100 vehicles per day (2022 count), of which roughly 30% are trucks.

How long is TR 284 over Trib to Mud Creek?

The structure is 172 ft (52.4 m) long with a longest span of 70 ft (21.4 m) and a deck 30 ft wide.

Who owns TR 284 over Trib to Mud Creek?

It is owned by the Town or Township Highway Agency.