US Bridges

Township Road 74 over Br Bureau CR

Fair

Bureau County, Illinois · 5.5 Mi. W. Lamoille · Structure no. 006311400000000

Built
1962
63 years old
Condition
Fair
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
92 ft
3 main spans
Daily traffic
125
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Township Road 74 over Br Bureau CR is a prestressed concrete box beam or girders - multiple carrying Township Road 74 over Br Bureau CR in Bureau County, Illinois. It was built in 1962, so it is 63 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.

It carries about 125 vehicles a day, roughly 17% of them trucks, projected to reach 126 by 2046. The structure is 92 ft (28 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesTownship Road 74
CrossesBr Bureau CR
Location5.5 Mi. W. Lamoille
RouteCounty Highway 0
CountyBureau County
StateIllinois
Coordinates41.52453, -89.38342
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 alignment7: Better than present minimum criteria
Operating rating70.3 US tons
Inventory rating42.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 15
Structure length92 ft (28 m)
Longest span30 ft (9.1 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2020)
Projected traffic126 by 2046
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Township Road 74 over Br Bureau CR built?

It was built in 1962, making it 63 years old in 2025.

What condition is Township Road 74 over Br Bureau CR 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 November 2023.

How much traffic does Township Road 74 over Br Bureau CR carry?

About 125 vehicles per day (2020 count), of which roughly 17% are trucks.

How long is Township Road 74 over Br Bureau CR?

The structure is 92 ft (28 m) long with a longest span of 30 ft (9.1 m) and a deck 28 ft wide.

Who owns Township Road 74 over Br Bureau CR?

It is owned by the Town or Township Highway Agency.