US Bridges

Ill 71 over Coffee Creek

Fair

Putnam County, Illinois · 5.14 MI W of Ill 89 · Structure no. 078003200000000

Built
1977
48 years old, rebuilt 2021
Condition
Fair
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
73 ft
1 main span
Daily traffic
3,600
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 71 over Coffee Creek is a prestressed concrete box beam or girders - multiple carrying Ill 71 over Coffee Creek in Putnam County, Illinois. It was built in 1977 and reconstructed in 2021, so it is 48 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 6 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 3,600 vehicles a day, roughly 24% of them trucks, projected to reach 3,848 by 2046. The structure is 73 ft (22.4 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesIll 71
CrossesCoffee Creek
Location5.14 MI W of Ill 89
RouteState Highway 71
CountyPutnam County
StateIllinois
Coordinates41.25676, -89.3005
Functional classRural Minor Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.2 US tons
Inventory rating56.4 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length73 ft (22.4 m)
Longest span72 ft (21.9 m)
Deck width36 ft (11 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,600 (2023)
Projected traffic3,848 by 2046
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Ill 71 over Coffee Creek built?

It was built in 1977, making it 48 years old in 2025. It was reconstructed in 2021.

What condition is Ill 71 over Coffee 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 April 2024.

How much traffic does Ill 71 over Coffee Creek carry?

About 3,600 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is Ill 71 over Coffee Creek?

The structure is 73 ft (22.4 m) long with a longest span of 72 ft (21.9 m) and a deck 36 ft wide.

Who owns Ill 71 over Coffee Creek?

It is owned by the State Highway Agency.