diff --git a/design_dump.cc b/design_dump.cc
index 908551c61..427a9a8da 100644
--- a/design_dump.cc
+++ b/design_dump.cc
@@ -279,8 +279,13 @@ void NetCompare::dump_node(ostream&o, unsigned ind) const
 void NetConcat::dump_node(ostream&o, unsigned ind) const
 {
       o << setw(ind) << "" << "NetConcat: "
-	<< name()
-	<< " scope=" << scope_path(scope())
+	<< name();
+      if (rise_time())
+	    o << " #(" << *rise_time()
+	      << "," << *fall_time() << "," << *decay_time() << ")";
+      else
+	    o << " #(0,0,0)";
+      o << " scope=" << scope_path(scope())
 	<< " width=" << width_ << endl;
       dump_node_pins(o, ind+4);
       dump_obj_attr(o, ind+4);
@@ -302,7 +307,10 @@ void NetMult::dump_node(ostream&o, unsigned ind) const
 
 void NetPow::dump_node(ostream&o, unsigned ind) const
 {
-      o << setw(ind) << "" << "LPM_POW (NetPow): " << name() << endl;
+      o << setw(ind) << "" << "LPM_POW (NetPow): " << name()
+	<< " scope=" << scope_path(scope())
+	<< " delay=(" << *rise_time() << "," << *fall_time() << ","
+	<<  *decay_time() << ")"  << endl;
       dump_node_pins(o, ind+4);
       dump_obj_attr(o, ind+4);
 }
@@ -457,7 +465,9 @@ void NetPartSelect::dump_node(ostream&o, unsigned ind) const
 	    break;
       }
       o << setw(ind) << "" << "NetPartSelect(" << pt << "): "
-	<< name() << " off=" << off_ << " wid=" << wid_ <<endl;
+	<< name() << " #(" << rise_time()
+	<< "," << fall_time() << "," << decay_time() << ") "
+	<< " off=" << off_ << " wid=" << wid_ <<endl;
       dump_node_pins(o, ind+4);
       dump_obj_attr(o, ind+4);
 }
diff --git a/elaborate.cc b/elaborate.cc
index 4075848f4..0845329e5 100644
--- a/elaborate.cc
+++ b/elaborate.cc
@@ -270,7 +270,7 @@ void PGAssign::elaborate(Design*des, NetScope*scope) const
 	   generated NetNet. */
       NetNet*rval = pin(1)->elaborate_net(des, scope,
 					  lval->vector_width(),
-					  rise_time, fall_time, decay_time,
+					  0, 0, 0,
 					  drive0, drive1);
       if (rval == 0) {
 	    cerr << get_fileline() << ": error: Unable to elaborate r-value: "
@@ -311,6 +311,12 @@ void PGAssign::elaborate(Design*des, NetScope*scope) const
 	    rval = osig;
       }
 
+	/* If there is a rise/fall/decay time, then attach that delay
+	   to the drivers for this net. */
+      if (rise_time || fall_time || decay_time) {
+	    rval->pin(0).drivers_delays(rise_time, fall_time, decay_time);
+      }
+
       connect(lval->pin(0), rval->pin(0));
 
       if (lval->local_flag())
diff --git a/net_link.cc b/net_link.cc
index e7aa09790..df1a97ca0 100644
--- a/net_link.cc
+++ b/net_link.cc
@@ -101,6 +101,11 @@ Link::DIR Link::get_dir() const
       return dir_;
 }
 
+void Link::drivers_delays(NetExpr*rise, NetExpr*fall, NetExpr*decay)
+{
+      nexus_->drivers_delays(rise, fall, decay);
+}
+
 void Link::drive0(Link::strength_t str)
 {
       drive0_ = str;
@@ -245,6 +250,19 @@ verinum::V Nexus::get_init() const
       return verinum::Vz;
 }
 
+void Nexus::drivers_delays(NetExpr*rise, NetExpr*fall, NetExpr*decay)
+{
+      for (Link*cur = list_ ; cur ; cur = cur->next_) {
+	    if (cur->get_dir() != Link::OUTPUT)
+		  continue;
+
+	    NetObj*obj = cur->get_obj();
+	    obj->rise_time(rise);
+	    obj->fall_time(fall);
+	    obj->decay_time(decay);
+      }
+}
+
 void Nexus::unlink(Link*that)
 {
       if (name_) {
diff --git a/netlist.h b/netlist.h
index 0ecd27201..c069e3942 100644
--- a/netlist.h
+++ b/netlist.h
@@ -148,6 +148,9 @@ class Link {
       void set_dir(DIR d);
       DIR get_dir() const;
 
+	// Set the delay for all the drivers to this nexus.
+      void drivers_delays(NetExpr*rise, NetExpr*fall, NetExpr*decay);
+
 	// A link has a drive strength for 0 and 1 values. The drive0
 	// strength is for when the link has the value 0, and drive1
 	// strength is for when the link has a value 1.
@@ -255,6 +258,8 @@ class Nexus {
       const char* name() const;
       verinum::V get_init() const;
 
+      void drivers_delays(NetExpr*rise, NetExpr*fall, NetExpr*decay);
+
       Link*first_nlink();
       const Link* first_nlink()const;