Black Hawk County, IA

411 public highway bridges

Black Hawk County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Black Hawk County, Iowa contains 411 public highway bridges. Roughly 46% are rated “Good,” 28.7% “Fair,” and 5.8% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

411

Total Bridges

46%

Good

28.7%

Fair

5.8%

Poor Condition

Condition Distribution

Good

46% (189)

Fair

28.7% (118)

Poor

5.8% (24)

All Bridges (411)

Sort:

RIVER FOREST RD

Over: I-380

0.8 MI. S OF S JCT. 218, Black Hawk, IA

Built 1981 ADT: 32,200

MLK JR DR

Over: LANE ST

CITY BRIDGE NO. 52, Black Hawk, IA

Built 1996 ADT: 998

NB US 218

Over: BLACK HAWK CK & RD

0.2 mi. N of Jct. U.S. 63, Black Hawk, IA

Built 1991 ADT: 861

SB US 218

Over: BLACK HAWK CK & RD

0.2 mi. N of Jct. U.S. 63, Black Hawk, IA

Built 1991 ADT: 861

US 218 NB

Over: FLETCHER AVE

0.6 Mi. N of JCT. US 63, Black Hawk, IA

Built 1991 ADT: 2,105

US 218 SB

Over: FLETCHER AVE

0.8 mi. N of Jct U.S. 63, Black Hawk, IA

Built 1991 ADT: 2,105

ANSBOROUGH AVE

Over: US 218

IN WATERLOO, Black Hawk, IA

Built 1991 ADT: 22,200

US 218 SB

Over: SB US 63

At jct. U.S. #63, Black Hawk, IA

Built 1991 ADT: 3,200

SB US 218

Over: NB US 63

3.6 mi. N of US 20, Black Hawk, IA

Built 1991 ADT: 2,700

NB IA 27

Over: IA 57

AT JCT. IA 57 & US 218, Black Hawk, IA

Built 1994 ADT: 9,800

IA 27 SB

Over: IA 57

AT JCT. IA. 57 & US 218, Black Hawk, IA

Built 1994 ADT: 7,800

NB IA 27

Over: SO MAIN ST

.3 mi S of University Ave, Black Hawk, IA

Built 1993 ADT: 3,150

SB IA 27

Over: SO MAIN ST

.3 mi S of University Ave, Black Hawk, IA

Built 1993 ADT: 3,150

IA 27

Over: UNIVERSITY AVE

2.1 MI. S of U.S. 218, Black Hawk, IA

Built 1993 ADT: 8,200

NB IA 27

Over: SEERLEY BLVD

0.2 mi N of University Av, Black Hawk, IA

Built 1994 ADT: 1,175

SB IA 27

Over: SEERLEY BLVD

0.2 mi N of University Av, Black Hawk, IA

Built 1994 ADT: 1,175

NB IA 27

Over: 18TH ST

1.6 mi. S of US 218, Black Hawk, IA

Built 1994 ADT: 1,645

SB IA 27

Over: 18TH ST

1.6 Mi. S of US 218, Black Hawk, IA

Built 1994 ADT: 1,645

NB IA 27

Over: WATERLOO RD

1.3 mi. S of Jct. US 218, Black Hawk, IA

Built 1995 ADT: 2,500

SB IA 27

Over: WATERLOO RD

1.3 mi. S of Jct. US 218, Black Hawk, IA

Built 1995 ADT: 2,500

RAMP J (SB)

Over: IA 57

AT JCT. OF IA 57, Black Hawk, IA

Built 1995 ADT: 16,600

RAMP J(SB)US218

Over: IA 58

0.1 MI. N OF JCT. IA. #57, Black Hawk, IA

Built 1995 ADT: 17,700

NB US 218

Over: LINCOLN ST & OVERFLO

0.3 mi. N of jct. IA 57, Black Hawk, IA

Built 1995 ADT: 1,200

SB US 218

Over: LINCOLN ST & OVERFLO

0.3 Mi. N of Jct. IA 57, Black Hawk, IA

Built 1995 ADT: 1,200

RAMP A (SB)

Over: LINCOLN ST & OVERFLO

0.1 MI. N OF JCT. IA 57, Black Hawk, IA

Built 1995 ADT: 2,400

LONE TREE RD

Over: US 218

1.7 mi N of IA 57 & IA 58, Black Hawk, IA

Built 1995 ADT: 20,500

DUNKERTON RD

Over: US 218

At Jct. Dunkerton Rd., Black Hawk, IA

Built 1995 ADT: 21,200

EB 20

Over: US 218

AT W. JCT. I-380, Black Hawk, IA

Built 1983 ADT: 3,050

US 20 WB

Over: NB/WB RAMP I-380

AT EAST JCT. I-380, Black Hawk, IA

Built 1980 ADT: 4,200

US 20 EB

Over: NB/WB RAMP I-380

AT E JCT. I-380, Black Hawk, IA

Built 1980 ADT: 4,200

SB RP I-380 &20

Over: I-380 & 20

AT EAST JCT. I-380, Black Hawk, IA

Built 1980 ADT: 12,500

V49(RAYMOND RD)

Over: I-380

AT JCT. S.R. V49, Black Hawk, IA

Built 1980 ADT: 26,700

SR V51

Over: U.S. 20

At Jct. SR V51, Black Hawk, IA

Built 1980 ADT: 10,300

FM CO V062

Over: US 20

2.4 MI. W OF SR V65., Black Hawk, IA

Built 1980 ADT: 10,800

SPRING CREEK RD

Over: US 20

0.9 mi. W of Jct. SR V65, Black Hawk, IA

Built 1980 ADT: 10,800

WB US 20

Over: US 63 SERGEANT RD TRAIL

AT JCT. U.S. 63, Black Hawk, IA

Built 1983 ADT: 4,400

FM D-38

Over: I-380

2.8 mi. S of S Jct. US 20, Black Hawk, IA

Built 1984 ADT: 16,200

W 4TH ST

Over: US 20

0.5 MI. E OF JCT. US 63, Black Hawk, IA

Built 1984 ADT: 28,100

ANSBOROUGH AVE

Over: US 20

1.5 MI. W OF JCT. IA 21, Black Hawk, IA

Built 1984 ADT: 23,400

KIMBALL AVE

Over: US 20

0.5 MI. W OF JCT. IA 21, Black Hawk, IA

Built 1984 ADT: 25,900

IA 21

Over: US 20

AT JCT. US 20, Black Hawk, IA

Built 1983 ADT: 18,700

GILBERTVILLE RD

Over: I-380

1.2 MI. N OF JCT. SR V49, Black Hawk, IA

Built 1982 ADT: 29,700

EVANSDALE DR

Over: I-380

AT JCT. OF EVANSDALE DR., Black Hawk, IA

Built 1982 ADT: 27,000

I 380 NB

Over: MCCOY RD

2.6 MI. S OF JCT. US 218, Black Hawk, IA

Built 1983 ADT: 840

I 380 SB

Over: MCCOY RD

2.6 MI. S OF JCT. US 218, Black Hawk, IA

Built 1983 ADT: 840

I 380 NB

Over: ELK RUN CREEK & RD

1.9 MI S OF S JCT. US 218, Black Hawk, IA

Built 1983 ADT: 50

I 380 SB

Over: ELK RUN CREEK & RD

1.9 MI. S OF S JCT US 218, Black Hawk, IA

Built 1983 ADT: 50

I 380 NB

Over: IANR RR,TX ST, CEDAR RVR

0.4 MI. S OF JCT. 218, Black Hawk, IA

Built 1983 ADT: 1,905

US 20 EB IA 27 SB

Over: IANR RR,TX ST, CEDAR RVR

0.4 MI. S OF JCT. 20, Black Hawk, IA

Built 1983 ADT: 1,905

WB 20

Over: US 218

AT W JCT. I-380, Black Hawk, IA

Built 1983 ADT: 3,200

Read our methodology - how this data is sourced, computed, and verified.

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