US Bridges

TR 400 over Mud Creek

Poor

Henry County, Illinois · 4.0 MI SW Annawan · Structure no. 037324900000000

Built
1981
44 years old
Condition
Poor
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
142 ft
3 main spans
Daily traffic
75
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 400 over Mud Creek is a prestressed concrete box beam or girders - multiple carrying TR 400 over Mud Creek in Henry County, Illinois. It was built in 1981, so it is 44 years old, younger 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 75 vehicles a day, roughly 13% of them trucks, projected to reach 81 by 2046. The structure is 142 ft (43.3 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesTR 400
CrossesMud Creek
Location4.0 MI SW Annawan
RouteCounty Highway 0
Coordinates41.38633, -89.95318
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length142 ft (43.3 m)
Longest span60 ft (18.3 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2020)
Projected traffic81 by 2046
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 400 over Mud Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is TR 400 over Mud 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 September 2024.

How much traffic does TR 400 over Mud Creek carry?

About 75 vehicles per day (2020 count), of which roughly 13% are trucks.

How long is TR 400 over Mud Creek?

The structure is 142 ft (43.3 m) long with a longest span of 60 ft (18.3 m) and a deck 24 ft wide.

Who owns TR 400 over Mud Creek?

It is owned by the Town or Township Highway Agency.