US Bridges

TR 87 (TH-D10) over N Branch Crow Creek

Poor

Marshall County, Illinois · T29N-R1W-3PM Sec 11 · Structure no. 062470100000000

Built
1965
60 years old
Condition
Poor
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
97 ft
3 main spans
Daily traffic
50
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 87 (TH-D10) over N Branch Crow Creek is a prestressed concrete box beam or girders - multiple carrying TR 87 (TH-D10) over N Branch Crow Creek in Marshall County, Illinois. It was built in 1965, so it is 60 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 50 vehicles a day, roughly 40% of them trucks, projected to reach 51 by 2046. The structure is 97 ft (29.6 m) long and 26 ft wide.

Location

Open in Google Maps
CarriesTR 87 (TH-D10)
CrossesN Branch Crow Creek
LocationT29N-R1W-3PM Sec 11
RouteCounty Highway 0
CountyMarshall County
StateIllinois
Coordinates40.99949, -89.19574
Functional classRural 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 protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating51.8 US tons
Inventory rating31.4 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 15
Structure length97 ft (29.6 m)
Longest span40 ft (12.2 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic51 by 2046
Trucks40%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 87 (TH-D10) over N Branch Crow Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is TR 87 (TH-D10) over N Branch Crow 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 April 2023.

How much traffic does TR 87 (TH-D10) over N Branch Crow Creek carry?

About 50 vehicles per day (2024 count), of which roughly 40% are trucks.

How long is TR 87 (TH-D10) over N Branch Crow Creek?

The structure is 97 ft (29.6 m) long with a longest span of 40 ft (12.2 m) and a deck 26 ft wide.

Who owns TR 87 (TH-D10) over N Branch Crow Creek?

It is owned by the Town or Township Highway Agency.