US Bridges

TR 284 over N.Henderson Creek

FairPosted for load

Mercer County, Illinois · NW-13-T13NR1W · Structure no. 066410800000000

Built
1960
65 years old
Condition
Fair
inspected September 2023
Type
Channel Beam
Concrete
Length
73 ft
3 main spans
Daily traffic
25
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 284 over N.Henderson Creek is a concrete channel beam carrying TR 284 over N.Henderson Creek in Mercer County, Illinois. It was built in 1960, so it is 65 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 25 vehicles a day, projected to reach 25 by 2046. The structure is 73 ft (22.3 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesTR 284
CrossesN.Henderson Creek
LocationNW-13-T13NR1W
RouteCounty Highway 0
CountyMercer County
StateIllinois
Coordinates41.11957, -90.45702
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
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 geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating41.8 US tons
Inventory rating16.1 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 15
Structure length73 ft (22.3 m)
Longest span23 ft (7.1 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2024)
Projected traffic25 by 2046
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 284 over N.Henderson Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is TR 284 over N.Henderson 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 September 2023.

How much traffic does TR 284 over N.Henderson Creek carry?

About 25 vehicles per day (2024 count).

How long is TR 284 over N.Henderson Creek?

The structure is 73 ft (22.3 m) long with a longest span of 23 ft (7.1 m) and a deck 26 ft wide.

Who owns TR 284 over N.Henderson Creek?

It is owned by the Town or Township Highway Agency.