US Bridges

Ia 136 over Br Durien Creek

Fair

Dubuque County, Iowa · 0.1 Mi. N of SR D39 · Structure no. 000000000024151

Built
1985
40 years old
Condition
Fair
inspected July 2023
Type
Slab
Concrete Continuous
Length
128 ft
3 main spans
Daily traffic
2,520
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 136 over Br Durien Creek is a concrete continuous slab carrying Ia 136 over Br Durien Creek in Dubuque County, Iowa. It was built in 1985, so it is 40 years old, younger than the Iowa average of 45.5 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 2,520 vehicles a day, roughly 14% of them trucks, projected to reach 2,520 by 2043. The structure is 128 ft (39 m) long and 41 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesIa 136
CrossesBr Durien Creek
Location0.1 Mi. N of SR D39
RouteState Highway 136
CountyDubuque County
StateIowa
Coordinates42.39815, -91.12021
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.6 US tons
Inventory rating52 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length128 ft (39 m)
Longest span49 ft (14.9 m)
Deck width41 ft (12.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,520 (2022)
Projected traffic2,520 by 2043
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 Ia 136 over Br Durien Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Ia 136 over Br Durien 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 July 2023.

How much traffic does Ia 136 over Br Durien Creek carry?

About 2,520 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is Ia 136 over Br Durien Creek?

The structure is 128 ft (39 m) long with a longest span of 49 ft (14.9 m) and a deck 41 ft wide.

Who owns Ia 136 over Br Durien Creek?

It is owned by the State Highway Agency.